Students who wrote about their thoughts before a test outperformed students who did not. What is the explanation for these results?

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 force needed to overcome static friction is usually less than that needed to overcome kinetic friction.true or false?

Which of the following forces require physical contact? tension air resistance friction magnetic force applied force