A4-kilogram cat is resting on top of a bookshelf that is 3 meters high. what is the cat’s gravitational potential energy relative to the floor if the acceleration due to gravity is 9.8 m/s^2?

What is the measure of a change in an objects velocity?

The sun’s mass is 2.0×10^ 30 kg, its radius is 7.0×10 5 km, and it has a rotational period of approximately 28 days. if the sun should collapse into a white dwarf of radius 3.5×10 3 km, what would its period be if no mass were ejected and a sphere of uniform density can model the sun both before and after?

Dao makes a table to identify the variables used in the equations for centripetal acceleration. what quantities belong in cells x and y?