If a stone with an original velocity of 0 is falling from a ledge and takes 8 seconds to hit the ground, what is the final velocity of the stone? a. 42.6 m/s b. 156.8 m/s c. 39.2 m/s d. 78.4 m/s

Curious carl calculated the density of a cube to be 4.50 g/cm3. what is the density of the cube in g/l?

Amira pulls a 3 pound wagon 4 feet. how much work has she done?

A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n