Cueball moon (a featureless globe with no atmosphere, but the same mass and radius as our moon) has a mass of 7.4 X 10^(22) kg and a radius of 1.7 X 10^(6) m.
The appropriate tangential speed (in km/s) for a 10,000-kg spacecraft to achieve a circular orbit just above the surface is .

What properties of a moving object are used in determining the object's energy of motion

In a system with only a single force acting upon a body, what is the relationship between the change in kinetic energy and the work done by the force? answers: work is equal to the change in kinetic energy.work depends on the square of the change in potential energy.work is equal to the negative of the change in kinetic energy.work is equal to the square of the change in kinetic energy

Aparticle of mass m is placed in a one-dimensional box of length l. the box is so small that the particle’s motion is relativistic, so that e p2/2m is not valid. (a) derive an expression for the energy levels of the particle using the relativistic energy–momentum relation and the quantization of momentum that derives from connement. (b) if the particle is an electron in a box of length l 1.00 1012 m, nd its lowest possible kinetic energy. by what percent is the nonrelativistic formula for the energy in error?