A 2.0 kilogram ball above the floor has 39 joules of potential energy the balls height is about meters above the floor

Through which one of the following mediums is the velocity of a sound wave the greatest? A. Water B. Lead C. Steel D. Air

A spring is stretched 2 cm when a mass of 40 grams is hung from it what is the spring constant of the spring

What type of simple machine will allow you to change the direction of the resistance? A. a ramp B. a lever C. a pulley D. a wedge

Name and describe 4 forces that are at work in the nucleus of an atom

Helen keller writes in chapter 14, the winter of 1892 was darkened by the one cloud in my childhood's bright sky. what was the cloud?

What is the fundamental frequency of a particular medium?. a. the lowest frequency at which a standing wave is possible. b. the highest frequency at which s standing wave is possible

The distance from the inner core to the surface of the earth is about 5,200 kilometers. the large amount of material surrounding the inner core places tremendous pressure on it.

What type of wave is sound? longitudinal light surface transversal

What is the difference between meteors and meteorites?

The puzzle box is traditionally associated with the work of