A 21.5 kg dog is running northward at 2.59 m/s, while a 4.03 kg cat is running eastward at 3.48 m/s. Their 70.2 kg owner has the same momentum as the two pets taken together. Find the direction and magnitude of the owner's velocity.

Which statement is true? a. kepler's laws apply only to the motion of earth. b. kepler's laws can be used to predict eclipses. c. kepler's laws are true for a central force that is directly proportional to distance. d. kepler's laws can be deduced from newton's laws of motion and gravity.

Aclarinetist, setting out for a performance, grabs his 3.350 kg clarinet case (including the clarinet) from the top of the piano and carries it through the air with an upward force of 24.65 n. find the case's vertical acceleration. indicate an upward acceleration as positive and a downward one as negative.

Which of the following are appropriate acceleration units?