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the distance between the object and the center of the Earth

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Q: When calculating gravitational potential energy you must use?
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Calculating gravitational potential energy you must use?

PE = mgh, that is, mass x gravity x height.


Which factors must be know to calculate an object gravitational potential energy?

Mass speed


What factors must be known to calculate an object gravitational potential energy?

its mass and height


Which factors must be known to calculate an object's gravitational potential energy?

To calculate an object's gravitational potential energy, the following factors must be known: Mass of the object: The gravitational potential energy of an object depends on its mass. The greater the mass of the object, the greater the gravitational potential energy. Height or distance: The gravitational potential energy of an object also depends on its height or distance from the reference point. The greater the height or distance of the object from the reference point, the greater the gravitational potential energy. Acceleration due to gravity: The gravitational potential energy of an object also depends on the acceleration due to gravity at the location of the object. The acceleration due to gravity is a constant value on the surface of the Earth, approximately equal to 9.8 meters per second squared. The formula for gravitational potential energy is: PE = mgh Where PE is the gravitational potential energy, m is the mass of the object, g is the acceleration due to gravity, and h is the height or distance of the object from the reference point.


How can it be explained that gravitational potential is negative?

It all depends what energy level is arbitrarily assigned a value of zero. In gravitational potential energy, it is common to assign a value of zero to the potential energy when objects are infinitely far away from each other; in this case, if they are closer together, they must needs have a negative energy. But if another definition is used, the numbers will vary.


What is the gravitational potential energy of a chalk lying on the floor?

Potential energy always depends on the reference level (it must be specified in relation to something). If you use the ground as your reference level (as is usual), then height = 0, so the potential energy is also zero.


What is gravitational potiential energy?

Potential energy is energy done to place something somewhere, against a force (not any force, it must be a so-called "conservative force", but I am only mentioning this for completeness sake). Specifically, gravitational potential energy is the energy an object has when it is raised above ground level. You need to supply energy (as work) to lift it up; in theory, this energy can be recovered if the object falls down.


Why do roller coasters end lower than where they start?

Since the top of the first hill is the highest point on the track, it's also the point at which the roller coaster's gravitational potential energy is greatest. As the roller coaster passes over the top of the first hill, its total energy is greatest. Most of that total energy is gravitational potential energy but a small amount is kinetic energy, the energy of motion. From that point on, the roller coaster does two things with its energy. First, it begins to transform that energy from one form to another--from gravitational potential energy to kinetic energy and from kinetic energy to gravitational potential energy, back and forth. Second, it begins to transfer some of its energy to its environment, mostly in the form of heat and sound. Each time the roller coaster goes downhill, its gravitational potential energy decreases and its kinetic energy increases. Each time the roller coaster goes uphill, its kinetic energy decreases and its gravitational potential energy increases. But each transfer of energy isn't complete because some of the energy is lost to heat and sound. Because of this lost energy, the roller coaster can't return to its original height after coasting downhill. That's why each successive hill must be lower than the previous hill. Eventually the roller coaster has lost so much of its original total energy that the ride must end. With so little total energy left, the roller coaster can't have much gravitational potential energy and must be much lower than the top of the first hill.


Which factors must be known to calculate an ovjects gravitational potential energy?

Just look at the formula, the factors are all there. GPE = mgh (mass x gravity x height)


If an object's mechanical energy is equal to its potential energy how much kinetic energy does it have?

Mechanical Energy= Potential energy+ Kinetic energy, so for the mechanical energy to be equal to be potential energy, the kinetic energy must be 0.


If an object has kinetic energy then it must also have potential energy?

FALSE


Can an object have no either potential energy and kinetic energy?

Yes. Potential energy is energy that has not yet been released. Kinetic energy is energy or an object already in motion.Think of a ball 1 mile up in the air that begins to fall. After it has fallen 10 feet, releasing some, but not all of its potential energy, it has built up some kenetic energy as well from the motion of falling 10 feet, but still has 5270 feet worth of potential energy to go. What happens as the ball falls is that it gradually changes all of its potential energy into kinetic energy.co