(a) at what height above earth’s surface is the energy required to lift a satellite to that height equal to the kinetic energy required for the satellite to be in orbit at that height?
(b) for greater heights, which is greater, the energy for lifting or the kinetic energy for orbiting?

Explanation:

Gravitational Potential Energy at earth surface

Gravitational Potential Energy at height h is

Energy required to lift the satellite

Now Energy required to orbit around the earth

 (given)

(b)For greater height  is greater than

thus energy to lift the satellite is more than orbiting around earth

gpe = mass x gravity constant x height or… gpe = mgh

where… mass: measured in kilograms (kg)

gravity: gravity constant on earth = 10.00 m/s2

height: measured in meters (m)

gpe: measured in joules (j) or kilojoules (kj)

how do you solve gpe?

gravitational potential energy (gpe) is the energy an object has because of its position above the. ground.

gpe = mass x gravity constant x height or… gpe = mgh.

mass:

note: to earn full marks when solving science word problems, you must show your work:

formula.

example:

given values:

mass = 0.3 kg.

the answer would most likely be c, because if it's a comical piece of information, it may likely not be true, if it's a site that allows anybody to edit the content, it could mean a five year old is typing the info, and if it's a tv show produced by a celeb, it may have a biased opinion.