The force of Earth's gravity is about 10 N downward. What is the acceleration of a 15-kg
backpack if lifted with a 15-N force?

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.

Which is an example of an exothermic process?

Acorporation gives out its profits as dividends paid to whom?