How much work is done by the force of gravity when a 15 kilogram rock falls off of a bridge 20 meters high?

An iron cube has sides that measure 0.5 meter. The cube is cooled from 95°C to 75°C. What is the change in its volume?

Part a a microwave oven operates at 2.90 ghz. what is the wavelength of the radiation produced by this appliance? express the wavelength numerically in nanometers.

What is the definition of an unbalanced force?

15. Brandon weighs 600 newtons. What is his mass? * A. 0.0163 kg B. 9.8 kg C. 61.2 kg D. 2940 kg

Which tool would be most useful to identify areas with frequent earthquakes to predict future earthquakes?

Which statement is true? Select one of the options below as your answer: A. Quarks always occur in groups with leptons. B. Quarks always occur independently. C. Quarks always occur in groups with other quarks. D.

Peat is actually the early stage of

Explain how electric current is able to flow.

What is the angle between a rigid object and the force applied to it that yields torque using the equation T=Fd?

What is the difference between speed and velocity and give an example.