Lisa rushes down onto a subway platform to find her train already departing. she stops and watches the cars go by. each car is m long. the first moves past her in s and the second in s. find the constant acceleration of the train.

If the moon has a diameter of 2,159.14 miles, what is the maximum distance that it could be observed by the naked eye with enough detail that you could distinguish it from other celestial bodies (assuming that you have 20/20 vision)

When an object moves in uniform circular motion, the direction of its acceleration is a) in the same direction as its velocity vector. b) in the opposite direction of its velocity vector c) is directed toward the center of its circular path. d) is directed away from the center of its circular path. e) depends on the speed of the object.

If steel is more dense that lake water, why can a boat float