If a man moves a large box that weighs 10 newtons 20 meters in 30 seconds, how much power was used.

A force of 0.2 Newtons is required to slide a book across the table. The book accelerates at 0.11 m/s squared. What is the mass of the box?

Water droplets tend to have a spherical, round shape. Explain this fact in terms of the polar nature of water molecules.

Calculate the specific heat capacity of substance having mass 5 kg whose temperature increase from 15°C to 25°C by the supply of 19 KJ

A car moves at a velocity of 8.5 meters per second. It then accelerates at a constant rate of 2.5 m/s^2 for a total time of 5 seconds. How fast is the car moving at the end of the 5 seconds? I got 21 mps ... is this right?

What is the frequency of radiation whose wavelength is 2.40x10-5 cm?

jason hits a baseball off a tee toward right field. the ball has a horizontal velocity of 10 m/s and lands 5 meters from the tee. what is the height of the tee? show your work, including formula (s) and units.

What is the average amount of energy of motion in the particles of a substance

A race car is traveling at 76 m/s when it slows down at 9 m/s^2 for 4 seconds. What is his new velocity

Humpty Dumpty (12 kg) sat on a wall (2 m high). What was his potential energy, before his great fall? A. 235.2 J B. 235.2 N C. 24 J D. 246.1 W

Explain how we were able to boil water at room temperature