Suppose you are biking side by side with a friend. Write a short explanation that describes the motion of your friend? What information are you using to describe that motion?

Rearrange the kinetic energy equation so that velocity is the subject (kinetic energy equation = ek = 1/2 x mass x velocity ^2)

Which is caused when constructive interference occurs in sound waves? a. louder beats b. no disturbance c. softer noises d. no sounds

A moving car has kinetic energy. To bring the car to rest, you must decrease its kinetic energy to zero. The brakes do this work by applying a force over a distance. What effect would doubling the speed have on the braking distance?

Is the centripetal force and scalar or a vector?

Provide Newton's first law of motion and explain why it is important to consider this law in rocket design.

When observed from Earth, the wavelengths of light emitted by a star are shifted toward the red end of the electromagnetic spectrum. Why does this redshift occur?

Object A has a length of 3 cm, a width of 10 cm, and a height of 2 cm. Object B is dropped into a graduated cylinder. It displaces 60 mL of water. The volume of object A is:

Is the following sentence true or false? Some information about an object or process may be missing from a model.

If V is a velocity, l a length, and v a fluid property having dimensions of L2T-1, which of the following combinations are qualitatively dimensionless (show work for a through d) : (a) V l v (b) Vl/v (c) V2v (d) V / (l v)

What happens to the total mechnical energy of the apple as it falls from the tree?