Asled with a mass of 20 kg slides along frictionless ice at 4.5 m/s. it then crosses a rough patch of snow that exerts a friction force of 12 n. how far does it slide on the snow before coming to rest?

Newton's law of universal gravitation states that the force f between two masses, m1 and m2, is given below, where g is a constant and d is the distance between the masses. find an equation that gives an instantaneous rate of change of f with respect to d. (assume m1 and m2 represent moving points.)

Explain to someone who knows nothing about fossils the study of invertebrate paleontology and how it scientists understand the history of the earth. be sure your explanation contains a minimum of two complete sentences.

When an object is heated it contracts. a. true b. false