As it orbits Earth, the 11,000-kg Hubble Space Telescope travels at a speed of 7,900 m/s and is 560,000 m above Earth's surface. (a) What is its kinetic energy? J (b) What is its potential energy? (Assume that the Hubble Space Telescope is close enough to Earth that its acceleration due to gravity is g = 9.8 m/s2. Take the potential energy relative to the surface of Earth.) J

How much energy is required to move a 900 kg object from the Earth's surface to an altitude twice the Earth's radius? Need Help? Read It

Alissa dropped a ball from a height of 2000 mm. Find out (a) how long it will take to hit the ground and (b) what would be its velocity when it hits the ground? (c) If mass of the ball is 500 g, what would be its kinetic energy when it hits the ground? (d) What would be its potential energy before its fall?

A satellite has a mass of 94 kg and is located at 2.04  106 m above the surface of Earth. (a) What is the potential energy associated with the satellite at this location? J(b) What is the magnitude of the gravitational force on the satellite?

An object with mass 3 kg is moving with a speed of 5 m/s at a height of 2.5 m above the  ground. Using the ground as the zero Potential Energy point, what is the total mechanical energy of the particle?

In deep space, sphere A of mass 93 kg is located at the origin of an x axis and sphere B of mass 140 kg is located on the axis at x = 7.2 m. Sphere B is released from rest while sphere A is held at the origin. (a) What is the gravitational potential energy of the two-sphere system just as B is released? (b) What is the kinetic energy of B when it has moved 3.8 m toward A? (a) Number i Units (b) Number i Units

A hiker of mass 73 kg is going to climb to the top of Mount Tam, which has an elevation of 2,574 ft. a) If the hiker starts climbing at an elevation of 545 ft, what will their change in gravitational potential energy be, in joules, once they reach the top? Assume the zero of gravitational potential energy is at sea level.  b) Repeat the above calculation for the change in gravitational potential energy, but assume the gravitational potential is zero at the top of the mountain.

1. The Hubble space telescope orbits the Earth at an altitude of approxi- mately 600 kilometers and has a mass of 1.11 × 104 kg. (a) be pulled down to the surface of the Earth. Ignoring all air resistance, determine the speed with which the telescope would impact the Earth. Use mgh as the gravitational potential energy, where m is the mass of the telescope, g = 9.81 m/s? (the acceleration due to gravity at the surface of the Earth), and h is the distance the Hubble space telescope were to come to an abrupt stop it would above the surface of the Earth. (b) gravitational potential energy, Ug = -GmM/r, where G is Newton's gravitational constant, m is the mass of the telescope, M is the mass of the Earth, and r is the distance from the center of the Earth to the Hubble telescope. Repeat the calculation from Part (a) using the actual expression for the

How much energy AE would be required to move the Moon from its present orbit around Earth to a location that is twice as far away? Assume the Moon's orbit around Earth is nearly circular and has a radius of 3.84 × 10° m. ΔΕ= J