Ablock of mass m is placed on a frictionless plane inclined at an angle θ and the block is at distance d from the end. of course we would expect the block to slip down the plane. suppose we revolve the incline around the vertical axis as shown in the figure below. at what period of revolution will the block remain in place on the plane?

If an athlete runs once around a track, back to the starting line, her average velocity is zero. true or false?

Agroup of students were investigating the force of gravity. they began by dropping a foam ball from a height of 3 meters into a bucket of sand. the ball hit the sand in 0.306 seconds. they dropped additional balls of approximately the same diameter, but of different masses. here is the data they collected. based on this experiment and the collected data, what would their conclusion be?

Which of the following is the phase that results when the moon is on the opposite side of the earth from the sun? a. quarter moon b. crescent moon c. new moon d. full moon