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What type of simple machine is a catapult? (incline plane, lever, pulley, screw, wedge, or a wheel and axle) How do you know?

What type of energy transfer is made possible by a nine-volt battery in a calculator? a. light to mechanical b. electrical to chemical c. chemical to electrical d. electrical to electromagnetic

Audible wavelengths. the range of audible frequencies is from about 20.0 hz to 2.00*104 hz. what is range of the wavelengths of audible sound in air?

Does the sun have a greater gravitational force than Jupiter?

15) In which of the following cases would sound reach each ear out of phase? A. You are standing directly in front of the sound source. B. You are standing directly below the sound source. C.

What is the most advanced life form on earth

Which EM wave is about the size of humans?

Describe how the Catapult works?

Newton's third law of motion states that the force pair acting on different objects consist of two forces that

While working on her science fair project Venus connected a battery to a circuit that contained a light bulb. Venus decided to change the light bulb to a higher resistance, but she wanted to keep the current the same.