Define the law of universal gravitation in your own words.

You throw a small rock straight up from the edge of a highway bridge that crosses a river. the rock passes you on its way down, 7.00 s after it was thrown. what is the speed of the rock just before it reaches the water 28.0 m below the point where the rock left your hand? ignore air resistance.

The direction of the current in an alternating current circuit remains constant. is direct. changes repeatedly. changes randomly.

If you divide a speed in miles per minute by 60, you get the same speed expressed in miles