What are two ways to change the state of a substance?

an electric current of 285.0 ma flows 674. milliseconds. Calculate the amount of electric charge transported. Be sure your answer has the correct unit symbol and the correct number of significant digits

How are electromagnetic waves different from mechanical waves?

A projectile is launched at ground level with an initial speed of 53.0 m/s at an angle of 35.0° above the horizontal. It strikes a target above the ground 2.50 seconds later.

Which of the following correctly identifies the relationship between work, force, and distance? A. W = d/F B. W = F x d C. W = F + d D. D = W x F

A person running around a track at a constant speed has zero acceleration. T or F

The amount or the strength of force is called its

An airplane in flight has a pressure difference between the lower and upper wing surface; this provides an upward force that balances the weight of the plane.

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Why does momentum have a direction?

What is the difference between weight and mass?