NO LINKS PLS. PLEASE NOTE THAT THIS IS NOT MULTIPLE CHOICE. A satellite with a mass of 600 kg is placed in orbit around an unknown planet. The radius of the orbit is 5 x 107 m and its period of rotation is 500 Earth days.
a)Calculate the orbital velocity.
b)Calculate the mass of the planet.
c)Calculate the gravitational force on the satellite.
d)If the satellite decreases its orbital radius, how would that change its orbital velocity?

An apple is falling from a tree. disregarding air resistance, which diagram shows the free-body diagram of the force or forces acting on the apple?

Determine the amount of work done when a crane lifts a 100-n block form 2m above the ground to 6m above the ground

An engineer designs a roller coaster so that a car travels horizontally for 162 ft, then climbs 127 ft at an angle of 31.0° above the horizontal. it then moves 127 ft at an angle of 46.0° below the horizontal. if we take the initial horizontal motion of the car to be along the +x-axis, what is the car's displacement? (give the magnitude of your answer, in ft, to at least four significant figures and give the direction of your answer in degrees counterclockwise from the +x-axis.)