Why is the gravatationalpotentialenergy of an object 1 meter above the moons surfacelessthan its potential?
86134
Potential is measure by mass x gravity x height. Since the force of gravity on the moon is about 1/6 of the earth, the potential on the moon compared to that of the earth would be: mass x (1/6)gravity x height.
962133
E potential = mgh\n= 4 kg ( 9.81 m/s^2) ( 2.5)\n=98.1\n\nPotential energy was not lost....it transformed into Kinetic Energy\n\nKinetic + Potential = Total Energy\n\nLaw of Conservation of Energy
47074
If the force acting on the object doesnt result in displacement of the particles in relation to the surroundings of the system under consideration, then the work done is zero.\n\n  Mathematically the work done is zero when the displacement is at right angle (90 degrees) to the direction of the force. \nSince work is calculated as force x displacement x cos(theta) \ni.e. W = F x d x cos (theta) \nwhere theta is the angle between the force and the displacement.\n\nEg : The earth does no work on the moon since the motion of the moon is at right angle (tangential) to the direction of the force applied by the earth.
56969
the work-energy theorem says that work is equivalent to energy.\n\nso, if you lift a 1 kg object 1 meter, you do some amount of work against gravity.  if you do the math, you'll find that the work is W = 9.8 kg*m^2/s^s.\n\nthe work-energy theorem says that this is equivalent to a change in energy, so delta_E = W = 9.8 Joules.\n\nbasically it is a simple statement of the conservation of energy, where a change in the potential energy equals the work put into the system.\n\nnote that it only applies for conservative forces, like gravity or the electrostatic repulsion.  if you are pushing something against friction, then there is an additional loss of energy to heat at the frictional surface, and the work-energy theorem does not apply.
1154106
I can think of a few interesting details.  If the two anchor points are fixed, given a unbreakable connection and rope, you would see immediate massive destruction.  But, consider a unbreakable rope, and a movable anchor.  Ha, what would happen?  The Moon is moving away from the Earth due to tidal forces over time, so stopping that would slowly increase the Moons period of orbit.  Strange stuff.  And the orbit is not circular, so when you attach the rope will be important.  If the rope is attached at the Moons closest point, we would see a immediate increase in periodicity.\n\nBut about the rope itself - with 108570 km of rope, what is a reasonable mass?  Just guessing a thickness of say 120 km (two percent of the earths radius) gives a volume of ~ 390 million cubic km.  Now, that is only one tenth the volume of the moon itself, and if the material was not light enough, its density and proximity to earth would have a huge effect on tides.  So the existence of the rope will be enough arguably, to cause catastrophic change.
778096
The height of the ramp give potential enery in the following format\n\nE = mgh      where E is potential energy, m is the mass of the car in Kgs, g is the gravitational acceleration of the planet you're on (in meters per second per second (9.8 on earth)) and h is the height of the ramp.\n\nThe angle or slope of the ramp will not affect the potential energy, but will have an effect on the rate of change of potential energy.
56246
It's a renewable resource, and can provide electricity in places that otherwise would have none at all.\n\nIt also helps all those satellites and space crafts in service for such long periods of time.\n\nIt's not the most practible source of energy here on Earth but it is something that can be built upon.
638389
you mean affect? \n\nI dont think the gravitational pull does much more, but I know plants and animals ( mostly underwater) use moonlight to do their photosynthesis, so the moon is not useless
1032909
Total energy at the start is equal to the gravitonal potential energy plus the initial kinetic energy. That equals 320000j + 14400j. At the bottom of the hill, the kinetic energy is 160000j and there is no more potential energy. The amount of energy lost to friction, in the form of heat, is 174400 joules.
981269
It's from radioctivity and friction.  The gas giants also create more heat than they recieve from the sun.  The sun is nowhere the near the only source of energy in the solar system.
162564
Potential Energy = stationary boulder on top of a building\nKinetic Energy = once the boulder is dropped and has speed
283905
Kinetic Energy describes the amount of energy an object has by virtue of it hasving some non-zero mass and traveling at some speed.\nKE= 1/2 mv^2\n\nPotential Energy describes the energy that could be gained by that object if it was not at that potential.  It is not really accurate to say that potential energy is energy at rest since it is very possible for moving objects to have potential energy.\nA good example would be a rock sitting on a cliff.  That rock has some potential gravitiational energy since it is sitting some height above the ground (the bottom of the cliff).  The potential energy equals the amount of energy needed to put that rock up there in the first place and the amount of energy which could be gained if the rock falls down from the cliff.  As the rock is falling, before it hits the ground, the rock has some fraction of its potential energy converted into kinetic, in other words it has both at the same time.\nThere are many forms of potential energy, gravitational potential energy being the most commonly described.\ngravitational PE = mgh
781911
None.\n\nCalories are a measure of the heat content of objects.  If you are referring to the amount of heat radiated by the earth, it would be stated in some unit appropriate to the measure of radiant energy, such as watts or newtons per second.\n\nYou may be able to find an answer by visiting the library or using the internet.
20664
This could not be done on earth because of its liquid core, but perhaps it could be done on the solid moon.\n\nAt the surface of the earth, a ball (let's say of lead) would have a potential energy (PE - energy of position) relative to the center of gravity at the center of the earth.  As the ball is released into the theoretical hole, it would accelerate (like dropping it into a well) and some of the PE would be converted to kinetic energy (KE - energy of motion).  Because energy can neither be created nor destroyed, as the ball drops its speed increases and it has more KE but less PE.  The ball will continue to accelerate until it reaches the center of the earth but with less attraction from the earth's gravitational field because more and more of the earth's mass is now above (or behind) it.  At the very center of the earth the ball would have maximum KE but minimum PE.  Passing the center the process is reversed and the ball slows as it reaches the other side of the earth's surface, all the while reconverting KE to PE.  At the opposite surface the ball would have maximum PE (equal to the original PE but of opposite sign (say - instead of +).\n\nThe process could repeat forever if there is no wind resistance (perfect vacuum - like on the moon) and the hole was perfectly smooth exerting no friction as the earth spins on its axis constantly touching the ball to the sides of the hole.\n\nOf course this must be a mental exercise; but it is an interesting demonstration of physics and energy conversion in particular.  Good luck.
1031159
They are called moonquakes.  If the moon had an atmosphere it probably would not be able to keep it or hold it at the moon's surface due to little gravity.  (only 1/6 of earth's)
231563
gravitational potential energy increases with altitued and the stregth of gravity\n\n\n\nwhile work is done, potential energy is converted into kinetic
1110951
hi dear friend\n         Absolutely the earth has magnetic energy naturally.because for example if we take an hydroelectric power plants the electricity is produced from the up to down fall of water on the turbines it is due to the magnetic property of the earth.Imagine if this hydro-electric power plant is built on the moon then how the water can flow think about it  there is no gravitational feild on moon.then water drops fall is very slow imagine how u can generate large amount of power.\n                                why iam saying this is upto my knowledge there is no other instruments to derive the large amount of free magnetic enery from the earth.if we want to find such kind of instruments we have to send lot of moneys.The only thing is by using friction due to magnetic propery of earth we can able to generate small amount of electrical energy\nfor example:\n             If u see in cycle dynamo it is kept in touch with the cycle tiers.Due to friction the cycle tiers is running and there will be little amount of current will be generated for lighting purpose.