A soccer ball is traveling at a velocity of 50 m/s. The kinetic energy of the ball is 500 J. What is the mass of the soccer ball? (Formula:) 0.1 kg 0.2 kg 0.4 kg 0.5 kg.

Which best supports the idea that the surface of the moon has changed very little?

A dog runs east for 21.25 meters. it takes the dog 8.5 seconds to cover this distance. what is the dog's average velocity? a. 1.5 m/s east b. 2.5 m/s east c. 3.5 m/s east d. 4.5 m/s east

What kind of energy does a burning log have? Can't figure this out for homework. It just needs to be a short answer.

When the Egyptians noticed this celestial body rising before the Sun it indicated to them the coming of the Nile flood.

Maisie drags a 1kg mass along a table with a Newton meter so that it accelerates at 0.25 m/s. The Newton-meter reads 0.4N, calculate the force of friction between the mass and the table

A worker pushes a box in a factory. In each case, decide which force has the greater magnitude: the force exerted by the worker on the box or the force exerted by the box on the worker.

To determine power we need to know the A. energy required and the time it takes B. amount of work and the distance covered C. amount of work in a given time D. distance and time it takes to do work

Does the speed of a wave depend only upon the medium through which it moves

Scscientist ask questions and make observations what types of questions and observations would you make if you are scientist studying schools of fish in the ocean

4. Water is flowing at 12m/s in a horizontal pipe under a pressure of 600kpa radius 2cm. a. What is the speed of the water on the other side of 0.5cm radius? b. What is the pressure of the other side?