pi/2){\n vx=-vx; // lookang added - to make assignment of velocity correct when direction is anticlockwise\n vy=-vy;\n}\n xf=x;\n yf=y;\n circular=true;\n trigger=0;\n}"
},
{
"Name": "fire",
"Active": "true",
"Internal": "false",
"Type": "LIBRARY_EDITOR",
"Comment": "",
"Code": "function fire(){\nc=Math.atan2(vy,vx);\nv=Math.sqrt(vx*vx+vy*vy);\nv0=v; //lookang\nvx=vx+k*v0*Math.cos(c);\nvy=vy+k*v0*Math.sin(c);\nxf=x;\nyf=y;\nanglevf=anglev; // make the fire appear n remember angle\n\ntrigger=0;\nr=Math.sqrt(x*x+y*y); // lookang change to real radius\nif(G*M/r==vx*vx+vy*vy)circular=true;\nelse circular=false;\n}"
},
{
"Name": "Lib Page",
"Active": "true",
"Internal": "false",
"Type": "LIBRARY_EDITOR",
"Comment": "",
"Code": "//https://developer.mozilla.org/en-US/docs/Web/Guide/API/DOM/Using_full_screen_mode\n// does not work for iOS \n/*jslint browser:true */\nfunction toggleFullScreen() {\n if (!document.fullscreenElement && // alternative standard method\n !document.mozFullScreenElement && !document.webkitFullscreenElement && !document.msFullscreenElement ) { // current working methods\n if (document.documentElement.requestFullscreen) {\n document.documentElement.requestFullscreen();\n } else if (document.documentElement.msRequestFullscreen) {\n document.documentElement.msRequestFullscreen();\n } else if (document.documentElement.mozRequestFullScreen) {\n document.documentElement.mozRequestFullScreen();\n } else if (document.documentElement.webkitRequestFullscreen) {\n document.documentElement.webkitRequestFullscreen();\n }\n } else {\n if (document.exitFullscreen) {\n document.exitFullscreen();\n } else if (document.msExitFullscreen) {\n document.msExitFullscreen();\n } else if (document.mozCancelFullScreen) {\n document.mozCancelFullScreen();\n } else if (document.webkitExitFullscreen) {\n document.webkitExitFullscreen();\n }\n }\n}"
},
{
"Name": "android",
"Active": "true",
"Internal": "false",
"Type": "LIBRARY_EDITOR",
"Comment": "",
"Code": "//code reference: http://davidwalsh.name/detect-android\nfunction checkAndroid () {\n var ua = navigator.userAgent.toLowerCase();\n return ua.indexOf(\"android\") > -1; //&& ua.indexOf(\"mobile\");\n}"
}
]
},
"elements": {
"list": []
}
},
"view": {
"Tree": [
{
"Name": "fullscreen",
"Type": "Panel",
"Expanded": "true",
"Properties": [
{
"name": "Width",
"value": "Width"
}
],
"Children": [
{
"Name": "controlPanel",
"Type": "Panel",
"Expanded": "true",
"Properties": [
{
"name": "Width",
"value": "\"100%\""
},
{
"name": "Display",
"value": "!print?\"inline-flex\":\"none\""
}
],
"Children": [
{
"Name": "comboBox",
"Type": "ComboBox",
"Properties": [
{
"name": "Options",
"value": "[\"v=2000\",\"v=4000\",\"v=6000\",\"v=8000\",\"v=10000\",\"v=12000\",\"circular motion at surface\",\"circular motion, 2*Earth radius\",\"circular motion, 3*Earth radius\",\"circular motion, 4*Earth radius\",\"surface escape velocity, \u03b8=0\",\"surface escape velocity, \u03b8=45\",\"surface escape velocity, \u03b8=90\",\"geostationary, h=35,786 km\",\"non-geostationary, h=35,786 km\",\"non-geostationary, h=60,720 km\",\"user defined\",\"\",\"print\"]"
},
{
"name": "Tooltip",
"value": "\"select user_defined and drag the mass\""
},
{
"name": "OnChange",
"value": "//var option = view.comboBox.getProperty(\"SelectedOptions\");\n//alert(option);\nvar opts = _view.comboBox.getProperty(\"SelectedOptions\"); // array of options\n var option = (opts.length > 0)? opts[0]:\"\"; // selected option \n\nif(option==\"user defined\"){\n//set projectile at top of mountain and compute velocity components\n//_pause(); // prevent trace to draw from any point back to origin causing a ugly straight line\nt = 0;\nx = 0.0*R;\ny = 1.185*R;\n//vx = vi*Math.cos(theta*Math.PI/180.0);\n//vy = vi*Math.sin(theta*Math.PI/180.0);\n\n}\n//print function starts here\nelse if (option == \"print\"){\n print = true;\n }\n//print ends now man\nelse if(option==\"v=2000\"){\nt = 0;\n//x = 0;\n//y = 6.384E6;\n// = Math.sqrt(x*x+y*y);\ntheta = 0;\nvi = 2000;\n}\nelse if(option==\"v=4000\"){\nt = 0;\n//x = 0;\n//y = 6.384E6;\n// = Math.sqrt(x*x+y*y);\ntheta = 0;\nvi = 4000;\n}\nelse if(option==\"v=6000\"){\nt = 0;\n//x = 0;\n//y = 6.384E6;\n// = Math.sqrt(x*x+y*y);\ntheta = 0;\nvi = 6000;\n\n\n}\nelse if(option==\"v=8000\"){\nt = 0;\n//x = 0;\n//y = 6.384E6;\n// = Math.sqrt(x*x+y*y);\ntheta = 0;\nvi = 8000;\n\n\n}\nelse if(option==\"v=10000\"){\nt = 0;\n//x = 0;\n//y = 6.384E6;\n// = Math.sqrt(x*x+y*y);\ntheta = 0;\nvi = 10000;\n\n\n}\nelse if(option==\"v=12000\"){\nt = 0;\n//x = 0;\n//y = 6.384E6;\n// = Math.sqrt(x*x+y*y);\ntheta = 0;\nvi = 12000;\n\n\n}\nelse if(option==\"circular motion at surface\"){\nt = 0;\nx = 0;\ny = 6.384E6;\nr = Math.sqrt(x*x+y*y);\ntheta = 0;\nvi = Math.sqrt(6.67E-11*6.0E24/r);\n\n\n}else if(option==\"circular motion, 2*Earth radius\"){\nt = 0;\nx = 0;\ny = 2*6.38E6;\nr = Math.sqrt(x*x+y*y);\ntheta = 0;\nvi = Math.sqrt(6.67E-11*6.0E24/r);\n}\nelse if(option==\"circular motion, 3*Earth radius\"){\nt = 0;\nx = 0;\ny = 3*6.38E6;\nr = Math.sqrt(x*x+y*y);\ntheta = 0;\nvi = Math.sqrt(6.67E-11*6.0E24/r);\n}\nelse if(option==\"circular motion, 4*Earth radius\"){\nt = 0;\nx = 0;\ny = 4*6.38E6;\nr = Math.sqrt(x*x+y*y);\ntheta = 0;\nvi = Math.sqrt(6.67E-11*6.0E24/r);\n}\nelse if(option==\"surface escape velocity, \u03b8=0\"){\nt = 0;\nx = 0;\ny = 6.38E6;\nr = Math.sqrt(x*x+y*y);\ntheta = 0;\nvi = Math.sqrt(2*6.67E-11*6.0E24/r);\n}\nelse if(option==\"surface escape velocity, \u03b8=45\"){\nt = 0;\nx = 0;\ny = 6.38E6;\nr = Math.sqrt(x*x+y*y);\ntheta = 45;\nvi = Math.sqrt(2*6.67E-11*6.0E24/r);\n}\nelse if(option==\"surface escape velocity, \u03b8=90\"){\nt = 0;\nx = 0;\ny = 6.38E6;\nr = Math.sqrt(x*x+y*y);\ntheta = 90;\nvi = Math.sqrt(2*6.67E-11*6.0E24/r);\n}\n\nelse if(option==\"geostationary, h=35,786 km\"){\nt = 0;\nx = 0;\ny = Math.pow(6.67E-11*6.0E24/(omega*omega),(0.3333333));\nr = Math.sqrt(x*x+y*y);\ntheta = 0;\nvi = omega*r;\n}\n\nelse if(option==\"non-geostationary, h=35,786 km\"){\nt = 0;\nx = 0;\ny = Math.pow(6.67E-11*6.0E24/(omega*omega),(0.3333333));\nr = Math.sqrt(x*x+y*y);\ntheta = 0;\nvi = -omega*r;\n}\n\nelse if(option==\"non-geostationary, h=60,720 km\"){\nt = 0;\nx = 0;\ny = Math.pow(6.67E-11*6.0E24/(0.5*0.5*omega*omega),(0.3333333));\nr = Math.sqrt(x*x+y*y);\ntheta = 0;\nvi = 0.5*omega*r;\n}\nif (referenceframe==true) {\n cta = 0;\nt = 0 ;\nomega = 0;\ntext3 = \"South Pole View of Earth \\nwith reference frame Earth\";\n }\n else {\n cta = 0;\nt = 0 ;\nomega = 2*pi/(24*60*60);\ntext3 = \"South Pole View of Earth \\nwith reference frame Space\";\n }\n\nvx = vi*Math.cos(theta*Math.PI/180.0);\nvy = vi*Math.sin(theta*Math.PI/180.0);\nvxdrag = vx*R/10000;\nvydrag = vy*R/10000;\nxf=x;\nyf=y;\n\n_update();\n\n"
},
{
"name": "Height",
"value": "cbh"
},
{
"name": "Font",
"value": "font"
}
]
},
{
"Name": "worldgraph",
"Type": "ComboBox",
"Properties": [
{
"name": "Options",
"value": "[\"world\",\"graph\",\"both\",\"velocity show\",\"velocity off\",\"acceleration show\",\"acceleration off\",\"reference frame Space\",\"reference frame Earth\",\"circular orbit launch velocity\",\"fire backward thrusters\",\"fire backward thrusters2\",\"fire forward thrusters\",\"fire forward thrusters2\",\"KE vs t\",\"KE vs t off\",\"PE vs t\",\"PE vs t off\",\"TE vs t\",\"TE vs t off\",\"\",\"print\"]"
},
{
"name": "Tooltip",
"value": "\"select user_defined and drag the mass\""
},
{
"name": "OnChange",
"value": "//var option = _view.worldgraph.getProperty(\"SelectedOptions\");\nvar opts = _view.worldgraph.getProperty(\"SelectedOptions\"); // array of options\n var option = (opts.length > 0)? opts[0]:\"\"; // selected option \n\nif ( option==\"world\"){\n world=true;\n graph=false;\nWidth1 = \"100%\";\nWidth2 = \"0%\";\n\n//disabled=false;\n\n }\n//function for printing starts here\nelse if (option == \"print\"){\n print = true;\n }\n//function ends here for printing\n if ( option==\"both\"){\n world=true;\n graph=true;\nWidth1 = \"50%\";\nWidth2 = \"50%\";\n\n//disabled=false;\n\n }\n if ( option==\"graph\"){\n world=false;\n graph=true;\nWidth1 = \"0%\";\nWidth2 = \"100%\";\n\n//disabled=false;\n\n }\nelse if ( option==\"x vs t\"){\n\ngraph=true;\nxvst=true;\n//disabledworld=false;\n}\nelse if ( option==\"velocity show\"){\n\nvelocity=true;\n//disabledworld=false;\n}\nelse if ( option==\"acceleration show\"){\n\ngraph=true;\nforce=true;\n//disabledworld=false;\n}\nelse if ( option==\"KE vs t\"){\n\ngraph=true;\nKEvstime=true;\n//disabledworld=false;\n}\nelse if ( option==\"PE vs t\"){\n\ngraph=true;\nPEvstime=true;\n//disabledworld=false;\n}\nelse if ( option==\"TE vs t\"){\n\ngraph=true;\nTEvstime=true;\n//disabledworld=false;\n}\nelse if ( option==\"x vs t off\"){\n\nxvst=false;\n//disabledworld=false;\n}\nelse if ( option==\"velocity off\"){\n\n\nvelocity=false;\n//disabledworld=false;\n}\nelse if ( option==\"acceleration off\"){\n\n\nforce=false;\n//disabledworld=false;\n}\nelse if ( option==\"reference frame Earth\"){\n\n\ncta = 0;\nt = 0 ;\nomega = 0;\ntext3 = \"reference frame Earth\";\n//disabledworld=false;\n}\nelse if ( option==\"reference frame Space\"){\n\n\ncta = 0;\nt = 0 ;\nomega = 2*pi/(24*60*60);\ntext3 = \"reference frame Space\";\n//disabledworld=false;\n}\nelse if ( option==\"circular orbit launch velocity\"){\ncircular=true;\ncircle();\n//disabledworld=false;\n}\nelse if ( option==\"fire backward thrusters\"){\nk = -k; \nfire();\nvxdrag = vx*R/10000;\nvydrag = vy*R/10000;\n//vx = vxdrag*10000/R;\n//vy = vydrag*10000/R;\nk= -k;\n}\nelse if ( option==\"fire forward thrusters\"){\nfire();\nvxdrag = vx*R/10000;\nvydrag = vy*R/10000;\n}\nelse if ( option==\"fire backward thrusters2\"){\nk = -k; \nfire();\nvxdrag = vx*R/10000;\nvydrag = vy*R/10000;\n//vx = vxdrag*10000/R;\n//vy = vydrag*10000/R;\nk= -k;\n}\nelse if ( option==\"fire forward thrusters2\"){\nfire();\nvxdrag = vx*R/10000;\nvydrag = vy*R/10000;\n}\n\n\nelse if ( option==\"KE vs t off\"){\n\n\nKEvstime=false;\n//disabledworld=false;\n}\nelse if ( option==\"PE vs t off\"){\n\n\nPEvstime=false;\n//disabledworld=false;\n}\nelse if ( option==\"TE vs t off\"){\n\n\nTEvstime=false;\n//disabledworld=false;\n}\n\nelse if ( option==\"show model\"){\n\nshowmodel=true;\n}\nelse if ( option==\"hide model\"){\n\nshowmodel=false;\n}\n"
},
{
"name": "Height",
"value": "cbh"
},
{
"name": "Font",
"value": "font"
}
]
},
{
"Name": "playPauseButton22",
"Type": "TwoStateButton",
"Properties": [
{
"name": "OffClick",
"value": "text=\"paused\";\n_pause();"
},
{
"name": "TextOn",
"value": "\"Play\u25ba\""
},
{
"name": "State",
"value": "_isPaused"
},
{
"name": "Tooltip",
"value": "\"Play/Pause\""
},
{
"name": "TextOff",
"value": "\"Pause\u275a\u275a\""
},
{
"name": "Height",
"value": "cbh"
},
{
"name": "Disabled",
"value": "disabledbutton"
},
{
"name": "OnClick",
"value": "_play();\ntext=\"playing\";"
},
{
"name": "Font",
"value": "fontb"
}
]
},
{
"Name": "stepButton222",
"Type": "Button",
"Properties": [
{
"name": "Tooltip",
"value": "\"Step\""
},
{
"name": "Text",
"value": "\"Step\u275a\u25ba\""
},
{
"name": "Height",
"value": "cbh"
},
{
"name": "Disabled",
"value": "disabledbutton"
},
{
"name": "OnClick",
"value": "_step()"
},
{
"name": "Font",
"value": "fontb"
}
]
},
{
"Name": "init",
"Type": "Button",
"Properties": [
{
"name": "Tooltip",
"value": "\"Read in values and reset projectile to top of mountain.\""
},
{
"name": "Text",
"value": "\"Store\u25bc\""
},
{
"name": "Height",
"value": "cbh"
},
{
"name": "OnClick",
"value": "_view.trail.newSegment();\n_view.ke.newSegment();\n_view.pe.newSegment();\n_view.te.newSegment();\n//_view.trail.newSegment() ==_view.trail2.newSegment() ;\nmemorycolor=memorycolor+1;\nts=t;\nt=0;\nx = 0;\ny =1.185*R;\nvx=0;\nvy =0;\n\n_initialize();\ndisabledbutton=false;"
},
{
"name": "Font",
"value": "fontb"
}
]
},
{
"Name": "resetButton22",
"Type": "Button",
"Properties": [
{
"name": "Tooltip",
"value": "\"Reset\""
},
{
"name": "Text",
"value": "\"Reset\u21bb\""
},
{
"name": "Height",
"value": "cbh"
},
{
"name": "OnClick",
"value": "_reset()"
},
{
"name": "Font",
"value": "fontb"
}
]
}
]
},
{
"Name": "panel",
"Type": "Panel",
"Expanded": "true",
"Properties": [
{
"name": "Height",
"value": "\"90%\""
},
{
"name": "Width",
"value": "\"100%\""
}
],
"Children": [
{
"Name": "drawingPanel",
"Type": "DrawingPanel",
"Expanded": "false",
"Properties": [
{
"name": "Enabled",
"value": "true"
},
{
"name": "GuttersLineColor",
"value": "\"Black\""
},
{
"name": "OnDoubleClick",
"value": "toggleFullScreen();"
},
{
"name": "SquareAspect",
"value": "true"
},
{
"name": "MaximumY",
"value": "ymax"
},
{
"name": "GuttersLineWidth",
"value": "3"
},
{
"name": "MaximumX",
"value": "xmax"
},
{
"name": "MinimumX",
"value": "xmin"
},
{
"name": "MinimumY",
"value": "ymin"
},
{
"name": "AutoScaleY",
"value": "false"
},
{
"name": "AutoScaleX",
"value": "false"
},
{
"name": "MarginY",
"value": "10"
},
{
"name": "Visibility",
"value": "twoD"
},
{
"name": "Height",
"value": "\"90vh\""
},
{
"name": "Width",
"value": "Width1"
},
{
"name": "TLMessage",
"value": "print?\"\":\"select from dropdown menu and click play\""
},
{
"name": "BRMessage",
"value": "!print?text2:\"\""
}
],
"Children": [
{
"Name": "background2",
"Type": "Image2D",
"Properties": [
{
"name": "SizeX",
"value": "drawingsizex"
},
{
"name": "X",
"value": "0"
},
{
"name": "ImageUrl",
"value": "\"./stars2.jpg\""
},
{
"name": "Y",
"value": "0"
},
{
"name": "SizeY",
"value": "drawingsizey"
}
]
},
{
"Name": "fire",
"Type": "Shape2D",
"Properties": [
{
"name": "FillColor",
"value": "\"Yellow\""
},
{
"name": "SizeX",
"value": "size/2"
},
{
"name": "ShapeType",
"value": "\"WHEEL\""
},
{
"name": "X",
"value": "xf"
},
{
"name": "Y",
"value": "yf"
},
{
"name": "SizeY",
"value": "size/2"
},
{
"name": "PixelSize",
"value": "true"
}
]
},
{
"Name": "mountain",
"Type": "Shape2D",
"Properties": [
{
"name": "Transformation",
"value": "-cta"
},
{
"name": "FillColor",
"value": "\"LIGHTGRAY\""
},
{
"name": "SizeX",
"value": "R/20"
},
{
"name": "RelativePosition",
"value": "\"SOUTH\""
},
{
"name": "X",
"value": "0"
},
{
"name": "LineColor",
"value": "\"LIGHTGRAY\""
},
{
"name": "Y",
"value": "0"
},
{
"name": "Visibility",
"value": "diagram"
},
{
"name": "SizeY",
"value": "1.185*R"
}
]
},
{
"Name": "image",
"Type": "Image2D",
"Properties": [
{
"name": "Transformation",
"value": "-cta"
},
{
"name": "SizeX",
"value": "2*R"
},
{
"name": "X",
"value": "0"
},
{
"name": "Y",
"value": "0"
},
{
"name": "ImageUrl",
"value": "\"./NewtonsMountain/southpolepo00009_cV2.png\""
},
{
"name": "SizeY",
"value": "2*R"
}
]
},
{
"Name": "earth",
"Type": "Shape2D",
"Properties": [
{
"name": "Transformation",
"value": "-cta"
},
{
"name": "FillColor",
"value": "\"rgba(0,0,0,0)\""
},
{
"name": "SizeX",
"value": "2*R"
},
{
"name": "ShapeType",
"value": "\"WHEEL\""
},
{
"name": "X",
"value": "0"
},
{
"name": "LineColor",
"value": "\"Green\""
},
{
"name": "Y",
"value": "0"
},
{
"name": "SizeY",
"value": "2*R"
},
{
"name": "LineWidth",
"value": "2"
}
]
},
{
"Name": "centrepoint",
"Type": "Shape2D",
"Properties": [
{
"name": "FillColor",
"value": "\"Red\""
},
{
"name": "SizeX",
"value": "0.04*R"
},
{
"name": "X",
"value": "0"
},
{
"name": "LineColor",
"value": "\"Red\""
},
{
"name": "Y",
"value": "0"
},
{
"name": "Visibility",
"value": "center"
},
{
"name": "SizeY",
"value": "0.04*R"
}
]
},
{
"Name": "trail",
"Type": "Trail2D",
"Properties": [
{
"name": "Active",
"value": "t>0"
},
{
"name": "Connected",
"value": "t>0"
},
{
"name": "LineColor",
"value": "memorycolor"
},
{
"name": "InputX",
"value": "x"
},
{
"name": "Visibility",
"value": "trace"
},
{
"name": "InputY",
"value": "y"
},
{
"name": "LineWidth",
"value": "2"
}
]
},
{
"Name": "ball2",
"Type": "Shape2D",
"Properties": [
{
"name": "FillColor",
"value": "\"Cyan\""
},
{
"name": "Transformation",
"value": "anglev"
},
{
"name": "SizeX",
"value": "20"
},
{
"name": "ShapeType",
"value": "\"WHEEL\""
},
{
"name": "X",
"value": "x"
},
{
"name": "LineColor",
"value": "\"Green\""
},
{
"name": "Y",
"value": "y"
},
{
"name": "SizeY",
"value": "20"
},
{
"name": "PixelSize",
"value": "true"
},
{
"name": "EnabledPosition",
"value": "\"ENABLED_Y\""
},
{
"name": "OnDrag",
"value": "//y = Math.round(y/1000)*1000;\nif (y <=6384000) y = 6384000;\nif (y >=2*R) y = 2*R;\n\n//selected[0]=\"user_defined\";\n//selected[0]=\"user_defined\";\n_view.comboBox.setSelectedOptions([\"user_defined\"]);\n\nxf=x; // align firing position display\nyf=y;\n "
}
]
},
{
"Name": "agroup",
"Type": "Group2D",
"Expanded": "false",
"Properties": [
{
"name": "X",
"value": "x+1.2*fx"
},
{
"name": "Y",
"value": "y+1.2*fy-R/10"
},
{
"name": "Visibility",
"value": "force"
}
],
"Children": [
{
"Name": "atext",
"Type": "Text2D",
"Properties": [
{
"name": "FillColor",
"value": "\"Red\""
},
{
"name": "OutlineColor",
"value": "\"Red\""
},
{
"name": "RelativePosition",
"value": "\"CENTERED\""
},
{
"name": "Text",
"value": "!print?\"a = \" + am.toFixed(0) + \" m/s2\":\"a\""
},
{
"name": "EnabledPosition",
"value": "\"ENABLED_ANY\""
}
]
}
]
},
{
"Name": "vgroup",
"Type": "Group2D",
"Expanded": "false",
"Properties": [
{
"name": "X",
"value": "x+vx*R/10000+R/3"
},
{
"name": "Y",
"value": "y+vy*R/10000"
},
{
"name": "Visibility",
"value": "velocity"
}
],
"Children": [
{
"Name": "vtext",
"Type": "Text2D",
"Properties": [
{
"name": "FillColor",
"value": "\"Magenta\""
},
{
"name": "OutlineColor",
"value": "\"Magenta\""
},
{
"name": "RelativePosition",
"value": "\"CENTERED\""
},
{
"name": "Text",
"value": "!print?\"v = \" + v.toFixed(0) + \" m/s\":\"v\""
},
{
"name": "EnabledPosition",
"value": "\"ENABLED_ANY\""
}
]
}
]
},
{
"Name": "acceleration",
"Type": "Arrow2D",
"Properties": [
{
"name": "MarkEnd",
"value": "\"TRIANGLE\""
},
{
"name": "FillColor",
"value": "\"Red\""
},
{
"name": "SizeX",
"value": "fx"
},
{
"name": "X",
"value": "x"
},
{
"name": "LineColor",
"value": "\"Red\""
},
{
"name": "Y",
"value": "y"
},
{
"name": "Visibility",
"value": "force"
},
{
"name": "SizeY",
"value": "fy"
},
{
"name": "LineWidth",
"value": "3"
}
]
},
{
"Name": "velocitydrag",
"Type": "Arrow2D",
"Properties": [
{
"name": "MarkEnd",
"value": "\"TRIANGLE\""
},
{
"name": "FillColor",
"value": "\"Magenta\""
},
{
"name": "SizeX",
"value": "vxdrag"
},
{
"name": "EnabledSize",
"value": "\"ENABLED_ANY\""
},
{
"name": "X",
"value": "x"
},
{
"name": "LineColor",
"value": "\"Magenta\""
},
{
"name": "Y",
"value": "y"
},
{
"name": "Visibility",
"value": "velocity&&t===0"
},
{
"name": "SizeY",
"value": "vydrag"
},
{
"name": "LineWidth",
"value": "3"
},
{
"name": "OnDrag",
"value": "vx = vxdrag*10000/R;\nvy = vydrag*10000/R;\n//selected[0]=\"user_defined\";\n//selected[0]=\"user_defined\";\n_view.comboBox.setSelectedOptions([\"user_defined\"]);\n"
},
{
"name": "Offset",
"value": "\"SOUTH_WEST\""
}
]
},
{
"Name": "velocitydrag2",
"Type": "Shape2D",
"Properties": [
{
"name": "FillColor",
"value": "\"rgba(0,255,255,0.0)\""
},
{
"name": "SizeX",
"value": "20"
},
{
"name": "ShapeType",
"value": "\"WHEEL\""
},
{
"name": "LineColor",
"value": "\"Magenta\""
},
{
"name": "X",
"value": "x+vx*R/10000"
},
{
"name": "Y",
"value": "y+vy*R/10000"
},
{
"name": "Visibility",
"value": "_isPaused"
},
{
"name": "SizeY",
"value": "20"
},
{
"name": "PixelSize",
"value": "true"
}
]
},
{
"Name": "velocity",
"Type": "Arrow2D",
"Properties": [
{
"name": "MarkEnd",
"value": "\"TRIANGLE\""
},
{
"name": "FillColor",
"value": "\"Magenta\""
},
{
"name": "SizeX",
"value": "vx*R/10000"
},
{
"name": "X",
"value": "x"
},
{
"name": "LineColor",
"value": "\"Magenta\""
},
{
"name": "Y",
"value": "y"
},
{
"name": "Visibility",
"value": "velocity&&t>0"
},
{
"name": "SizeY",
"value": "vy*R/10000"
},
{
"name": "LineWidth",
"value": "3"
},
{
"name": "Offset",
"value": "\"SOUTH_WEST\""
}
]
},
{
"Name": "segment",
"Type": "Segment2D",
"Properties": [
{
"name": "SizeX",
"value": "-x"
},
{
"name": "X",
"value": "x"
},
{
"name": "LineColor",
"value": "\"Yellow\""
},
{
"name": "Y",
"value": "y"
},
{
"name": "SizeY",
"value": "-y"
}
]
},
{
"Name": "ball",
"Type": "Group2D",
"Properties": [
{
"name": "Transformation",
"value": "anglev"
},
{
"name": "X",
"value": "x"
},
{
"name": "Y",
"value": "y"
}
]
}
]
},
{
"Name": "plottingPanel",
"Type": "PlottingPanel",
"Expanded": "false",
"Properties": [
{
"name": "Gutters",
"value": "[0,0,0,0]"
},
{
"name": "YScalePrecision",
"value": "0"
},
{
"name": "XFixedTick",
"value": "0"
},
{
"name": "AxisYFont",
"value": "\"normal normal 1vw \""
},
{
"name": "OnDoubleClick",
"value": "toggleFullScreen();"
},
{
"name": "YFixedTick",
"value": "0"
},
{
"name": "TRMessage",
"value": "print?\"\":\"energies versus time\""
},
{
"name": "XTickStep",
"value": "1000"
},
{
"name": "YTickStep",
"value": "ytickstep"
},
{
"name": "XAutoTicks",
"value": "false"
},
{
"name": "Height",
"value": "\"90vh\""
},
{
"name": "Width",
"value": "Width2"
},
{
"name": "Enabled",
"value": "true"
},
{
"name": "MaximumY",
"value": "TE"
},
{
"name": "MaximumX",
"value": "Math.sqrt(R^3*4*pi^2/G/M)"
},
{
"name": "YAutoTicks",
"value": "false"
},
{
"name": "MinimumX",
"value": "0"
},
{
"name": "MinimumY",
"value": "0"
},
{
"name": "TitleY",
"value": "\"energies\""
},
{
"name": "AxisXFont",
"value": "\"normal normal 1vw \""
},
{
"name": "AutoScaleY",
"value": "true"
},
{
"name": "TitleX",
"value": "\"t\""
},
{
"name": "AutoScaleX",
"value": "true"
},
{
"name": "MarginX",
"value": "20"
},
{
"name": "MarginY",
"value": "10"
},
{
"name": "Visibility",
"value": "graph"
},
{
"name": "XScalePrecision",
"value": "0"
},
{
"name": "BRMessage",
"value": "!print?\"PE = \"+PE.toExponential(3)+\" J ,\\n\"+\"KE = \"+KE.toExponential(3)+\" J ,\\n\"+\"TE = \"+TE.toExponential(3)+\" J ,\\n\"+\"t = \"+_view._format(t,\"0\")+\" s\":\"\""
}
],
"Children": [
{
"Name": "axes2",
"Type": "Arrow2D",
"Properties": [
{
"name": "MarkEnd",
"value": "\"ANGLE\""
},
{
"name": "SizeX",
"value": "0"
},
{
"name": "X",
"value": "0"
},
{
"name": "LineColor",
"value": "\"Black\""
},
{
"name": "Y",
"value": "0"
},
{
"name": "SizeY",
"value": "100000000*2"
},
{
"name": "LineWidth",
"value": "2"
},
{
"name": "Offset",
"value": "\"CENTERED\""
}
]
},
{
"Name": "axes",
"Type": "Arrow2D",
"Properties": [
{
"name": "MarkEnd",
"value": "\"ANGLE\""
},
{
"name": "SizeX",
"value": "Math.max(Math.max(t,Math.sqrt(R^3*4*pi^2/G/M)),ts)"
},
{
"name": "X",
"value": "0"
},
{
"name": "LineColor",
"value": "\"Black\""
},
{
"name": "Y",
"value": "0"
},
{
"name": "SizeY",
"value": "0"
},
{
"name": "LineWidth",
"value": "2"
}
]
},
{
"Name": "ke",
"Type": "Trail2D",
"Properties": [
{
"name": "Connected",
"value": "t>0"
},
{
"name": "LineColor",
"value": "\"MAGENTA\""
},
{
"name": "InputX",
"value": "t"
},
{
"name": "Visibility",
"value": "KEvstime"
},
{
"name": "InputY",
"value": "KE"
},
{
"name": "NoRepeat",
"value": "true"
},
{
"name": "LineWidth",
"value": "2"
}
]
},
{
"Name": "ke4",
"Type": "Shape2D",
"Properties": [
{
"name": "FillColor",
"value": "\"Magenta\""
},
{
"name": "SizeX",
"value": "10"
},
{
"name": "ShapeType",
"value": "!print?\"ELLIPSE\":\"NONE\""
},
{
"name": "X",
"value": "t"
},
{
"name": "Y",
"value": "KE"
},
{
"name": "Visibility",
"value": "KEvstime"
},
{
"name": "SizeY",
"value": "10"
},
{
"name": "PixelSize",
"value": "true"
},
{
"name": "EnabledPosition",
"value": "_isPaused?\"ENABLED_Y\":\"\""
},
{
"name": "OnDrag",
"value": "//if (KE < 0) {\n// KE = 0;\n// }\n//else {\nanglev = Math.atan2(vy,vx);\nv = Math.sqrt(2*KE/m);\nvx = v*Math.cos(anglev);\nvy = v*Math.sin(anglev);\nvxdrag = R*vx/10000;\nvydrag = R*vy/10000;\n//}"
}
]
},
{
"Name": "text",
"Type": "Text2D",
"Properties": [
{
"name": "FillColor",
"value": "\"Magenta\""
},
{
"name": "RelativePosition",
"value": "\"SOUTH\""
},
{
"name": "X",
"value": "t"
},
{
"name": "Y",
"value": "KE"
},
{
"name": "Text",
"value": "!print?\"KE =\"+KE.toExponential(3)+ \" J\":\"\""
},
{
"name": "Visibility",
"value": "KEvstime"
}
]
},
{
"Name": "pe",
"Type": "Trail2D",
"Properties": [
{
"name": "Connected",
"value": "t>0"
},
{
"name": "LineColor",
"value": "\"Blue\""
},
{
"name": "InputX",
"value": "t"
},
{
"name": "Visibility",
"value": "PEvstime"
},
{
"name": "InputY",
"value": "PE"
},
{
"name": "NoRepeat",
"value": "true"
},
{
"name": "LineWidth",
"value": "2"
}
]
},
{
"Name": "pe3",
"Type": "Shape2D",
"Properties": [
{
"name": "FillColor",
"value": "\"Blue\""
},
{
"name": "SizeX",
"value": "10"
},
{
"name": "ShapeType",
"value": "!print?\"ELLIPSE\":\"NONE\""
},
{
"name": "X",
"value": "t"
},
{
"name": "Y",
"value": "PE"
},
{
"name": "Visibility",
"value": "PEvstime"
},
{
"name": "SizeY",
"value": "10"
},
{
"name": "PixelSize",
"value": "true"
},
{
"name": "EnabledPosition",
"value": "_isPaused?\"ENABLED_Y\":\"\""
},
{
"name": "OnDrag",
"value": "if (PE > -10000000) {\n PE = -10000000;\n }\nelse {\n\ny = -6.67E-11*m*6.0E24/PE;\nif (y <=6384000) y = 6384000;\nif (y >=2*R) y = 2*R;\n \n}\n\n\n"
}
]
},
{
"Name": "text2",
"Type": "Text2D",
"Properties": [
{
"name": "FillColor",
"value": "\"Blue\""
},
{
"name": "RelativePosition",
"value": "\"SOUTH\""
},
{
"name": "X",
"value": "t"
},
{
"name": "Y",
"value": "PE"
},
{
"name": "Text",
"value": "!print?\"PE =\"+PE.toExponential(3)+ \" J\":\"\""
},
{
"name": "Visibility",
"value": "PEvstime"
}
]
},
{
"Name": "te",
"Type": "Trail2D",
"Properties": [
{
"name": "Connected",
"value": "t>0"
},
{
"name": "LineColor",
"value": "\"Black\""
},
{
"name": "InputX",
"value": "t"
},
{
"name": "Visibility",
"value": "TEvstime"
},
{
"name": "InputY",
"value": "TE"
},
{
"name": "NoRepeat",
"value": "true"
},
{
"name": "LineWidth",
"value": "2"
}
]
},
{
"Name": "te3",
"Type": "Shape2D",
"Properties": [
{
"name": "FillColor",
"value": "\"Black\""
},
{
"name": "SizeX",
"value": "10"
},
{
"name": "ShapeType",
"value": "!print?\"ELLIPSE\":\"NONE\""
},
{
"name": "X",
"value": "t"
},
{
"name": "Y",
"value": "TE"
},
{
"name": "Visibility",
"value": "TEvstime"
},
{
"name": "SizeY",
"value": "10"
},
{
"name": "PixelSize",
"value": "true"
}
]
},
{
"Name": "text22",
"Type": "Text2D",
"Properties": [
{
"name": "RelativePosition",
"value": "\"SOUTH\""
},
{
"name": "X",
"value": "t"
},
{
"name": "Y",
"value": "TE"
},
{
"name": "Text",
"value": "!print?\"TE =\"+TE.toExponential(3)+ \" J\":\"\""
},
{
"name": "Visibility",
"value": "TEvstime"
}
]
},
{
"Name": "printenergylabels",
"Type": "Group2D",
"Expanded": "false",
"Properties": [
{
"name": "Visibility",
"value": "print"
}
],
"Children": [
{
"Name": "printke",
"Type": "Text2D",
"Properties": [
{
"name": "FillColor",
"value": "\"Magenta\""
},
{
"name": "RelativePosition",
"value": "\"SOUTH\""
},
{
"name": "Text",
"value": "\"KE\""
},
{
"name": "Visibility",
"value": "KEvstime"
},
{
"name": "EnabledPosition",
"value": "\"ENABLED_ANY\""
}
]
},
{
"Name": "printpe",
"Type": "Text2D",
"Properties": [
{
"name": "FillColor",
"value": "\"Blue\""
},
{
"name": "RelativePosition",
"value": "\"SOUTH\""
},
{
"name": "Text",
"value": "\"PE\""
},
{
"name": "Visibility",
"value": "PEvstime"
},
{
"name": "EnabledPosition",
"value": "\"ENABLED_ANY\""
}
]
},
{
"Name": "printte",
"Type": "Text2D",
"Properties": [
{
"name": "RelativePosition",
"value": "\"SOUTH\""
},
{
"name": "Text",
"value": "\"TE\""
},
{
"name": "Visibility",
"value": "TEvstime"
},
{
"name": "EnabledPosition",
"value": "\"ENABLED_ANY\""
}
]
},
{
"Name": "printkeball",
"Type": "Shape2D",
"Properties": [
{
"name": "FillColor",
"value": "\"Magenta\""
},
{
"name": "SizeX",
"value": "10"
},
{
"name": "ShapeType",
"value": "\"ELLIPSE\""
},
{
"name": "X",
"value": "1000"
},
{
"name": "Visibility",
"value": "KEvstime"
},
{
"name": "SizeY",
"value": "10"
},
{
"name": "PixelSize",
"value": "true"
},
{
"name": "OnDrag",
"value": "//if (KE < 0) {\n// KE = 0;\n// }\n//else {\nanglev = Math.atan2(vy,vx);\nv = Math.sqrt(2*KE/m);\nvx = v*Math.cos(anglev);\nvy = v*Math.sin(anglev);\nvxdrag = R*vx/10000;\nvydrag = R*vy/10000;\n//}"
},
{
"name": "EnabledPosition",
"value": "\"ENABLED_ANY\""
}
]
},
{
"Name": "printpeball",
"Type": "Shape2D",
"Properties": [
{
"name": "FillColor",
"value": "\"Blue\""
},
{
"name": "SizeX",
"value": "10"
},
{
"name": "ShapeType",
"value": "\"ELLIPSE\""
},
{
"name": "X",
"value": "1000"
},
{
"name": "Visibility",
"value": "PEvstime"
},
{
"name": "SizeY",
"value": "10"
},
{
"name": "PixelSize",
"value": "true"
},
{
"name": "EnabledPosition",
"value": "\"ENABLED_ANY\""
},
{
"name": "OnDrag",
"value": "if (PE > -10000000) {\n PE = -10000000;\n }\nelse {\n\ny = -6.67E-11*m*6.0E24/PE;\nif (y <=6384000) y = 6384000;\nif (y >=2*R) y = 2*R;\n \n}\n\n\n"
}
]
},
{
"Name": "printteball",
"Type": "Shape2D",
"Properties": [
{
"name": "FillColor",
"value": "\"Black\""
},
{
"name": "SizeX",
"value": "10"
},
{
"name": "ShapeType",
"value": "\"ELLIPSE\""
},
{
"name": "X",
"value": "1000"
},
{
"name": "Visibility",
"value": "TEvstime"
},
{
"name": "SizeY",
"value": "10"
},
{
"name": "PixelSize",
"value": "true"
},
{
"name": "EnabledPosition",
"value": "\"ENABLED_ANY\""
}
]
}
]
}
]
}
]
},
{
"Name": "html",
"Type": "Panel",
"Properties": [
{
"name": "Html",
"value": "Watch the Satellite Motion Video \n VIDEO \n \n Direct link: \n \n https://www.youtube.com/watch?v=pezXVxcY99s\n \n
\nSatellite Motion Study Guide \n\n Quiz \n Instructions: Answer the following questions in 2\u20133 sentences each.
\n \n What type of path does an object follow when projected horizontally near the Earth's surface with insufficient speed to achieve orbit? \n What is the primary force acting on a satellite in a circular orbit? \n What is the relationship between the velocity and the gravitational force on a satellite in a circular orbit? \n What is the role of gravitational force in the context of circular motion of a satellite? \n What happens to the speed of a satellite in a circular orbit? \n Explain why a satellite maintains a constant distance from Earth in a circular orbit? \n In the context of satellite motion, what is meant by \"centripetal force?\" \n What happens to the orbit of a satellite if its speed decreases? \n According to the text, what is a common misconception about satellite orbits that students have? \n What is the key takeaway from the simulation regarding the shapes of real satellite orbits? \n \n\n Quiz Answer Key \n \n An object projected horizontally near Earth\u2019s surface follows a parabolic trajectory when it lacks the speed necessary to orbit. This path curves towards the Earth due to gravity. \n The primary force acting on a satellite in a circular orbit is the Earth's gravitational force. This force constantly pulls the satellite towards the center of the Earth. \n The velocity of a satellite in a circular orbit is perpendicular to the gravitational force. This results in a consistent change in direction but a constant speed. \n In the circular motion of a satellite, the gravitational force acts as the centripetal force. This force is always directed toward the center of the circle, causing the satellite to move in a circular path. \n The speed of a satellite in a circular orbit remains constant as long as the orbital radius does not change. This constancy exists because the gravitational force does not act to speed up or slow down the object. \n A satellite maintains a constant distance because its velocity is always perpendicular to the gravitational force. These forces together create a circular path around Earth at a consistent radius. \n Centripetal force is the force required to keep an object moving in a circular path. It is always directed towards the center of the circular path. In the case of satellite motion, this is gravitational force. \n If a satellite's speed decreases, the gravitational force will become greater than the required centripetal force causing it to be pulled closer to Earth, moving in a smaller, potentially elliptical orbit. \n A common misconception that students have is that satellite orbits are always perfectly circular. In fact, real satellite orbits are more often elliptical than circular. \n The simulation demonstrates that real satellite orbits are not always perfectly circular but are often elliptical, which can be observed when the satellite's speed is altered. \n "
}
]
}
]
}
],
"RootProperties": []
},
"metadata": {
"APP": "WebEJS",
"CreatedWith": "WebEJS : The web version of Easy JavaScript Simulations",
"MoreInfo": "WebEJS 1.2",
"version": "https://www.um.es/fem/wikis/webejs/"
}
}