You exert a force of 25 newtons while you move a rock 15 meters. How much work did you perform?

Why is the chemical formula magnesium sulfide written as MgS and NOT Mg2S2?

A bobsleigh with four people on board has a total mass of 610 kg. How fast is the sleigh moving if it has a kinetic energy of 40.0 kJ?

The sun emits electromagnetic waves with a power of 4.0 * 10²⁶ W. Determine the intensity of electromagnetic waves from the sun just outside the atmospheres of (a) Venus, (b) Mars, and (c) Saturn.

Why does it seem harder to start sliding a couch across a carpeted floor than it oes to keep it moving?

A value that describes how heavy an object is and is related to the force of gravity is: a. mass c. a Newton b. weight d. none of the above

How are electricity and magnetism are related

At a cost of 9.0 cents/kWh, estimate how much this would add to your monthly electric energy bill if you made toast four mornings per week (16 times per month).

The rules for the shot put specify that the circle from which the shot-putter puts the shot must be only 7 ft 6 in. in diameter. The athlete may not allow any part of his or her body to touch anything outside of the circle during the throw.

Why did scientists develop modles of atoms?

The train traveled 500 kilometers north to Odessa in 2 hours. What's the train's speed? What is the velocity?