What two things must you know to find the

momentum of an object?

: (anyone?

Sound waves move through some liquid at a speed of 1500 m/s. If the wavelength is 3 m, what is the frequency of the wave?

In nuclear fission mass is transformed into

A force that opposes motion between surfaces that are touching

Explain why a moving object cannot come to a stop instantaneously (in zero seconds)

1. In this experiment what force acts between the two coils? 2. When the two coils are attracting, how do you balance the upper coil? 3. What will you measure in this experiment? 4.

A solid cylinder with a radius of 73.3 cm and a mass of 2.33 kg accelerates uniformly from rest in 4.13 seconds while experiencing 6.71 rotations. Solve for the (a) final angular velocity.

In the early stages of its formation, earth became hot enough that some of its solid materials turned to liquid. Which of these factors did not directly contribute to earths high internal temperatures

How do you find Rtotal in a series without knowing the voltage?

April swims 50 m north and then turns and swims 20 m back to the south. What is her velocity if it takes her 60 seconds?

All the colors of visible light can combine to form white light. a. True b. False