An upright spring with a 96g mass on it is compressed 2 cm. When released it travels 60 cm upwards. A) Calculate the spring constant. B)
Calculate its beginning speed when it takes off.
Please show work or equations used, I am very confused. Thanks!

Tall pacific coast redwood trees can reach heights of about 100 m. if air drag is negligibly small, how fast is a sequola cone moving when it reaches the ground f it dropped from the top of a 100 m tree?

Choose a realistic problem for which these are the correct freebody diagrams. be sure that the answer that the problem requests is consistent with the diagrams shown. choose a realistic problem for which these are the correct freebody diagrams. be sure that the answer that the problem requests is consistent with the diagrams shown. a 1.0 kg block is placed on top of a 2.0 kg block. a horizontal rope pulls the 2.0 kg block across a frictionless floor with a force of 21.0 n. the coefficient between the two blocks is 0.75. does the 1.0 kg block on top slide?

Complete the sentence to describe the law of conservation of energy. the law of conservation of energy states that energy cannot be created