A 20 kg crate of books is at rest on a table. what is the normal force on the books?

The speed of any sound wave as it travels through a medium is dependent mainly on the?

Which term describes how quickly a car is slowing down to a stop? Which term describes your location relative to your home? Which term describes how fast and in which direction you are traveling?

A waiter is carrying a tray above his head and walking at a constant velocity. If he applies a force of 5.0 newtons on the tray and covers a distance of 10.0 meters, how much is the work being done?

Calculate the change in velocity of 70 kg object being pulled with 1000N force force 10 s

Which of the following is the number 0.02204 written in scientific notation? O A. 2.240 x 10-3 O B. 2.204 x 10-1 O c. 2.204 x 102 OD. 2.204 x 102

Forgetting takes place only in short-term memory.

What is the simplest relationship between the angular wavenumber k and just one of the other kinematic variables? Express your answer using only one of the other kinematic variables plus constants like π.

The pilot of an airplane notes that the compass indicates heading west. The airplane's speed relative to the air is 100 km/h. The air is moving in a wind at 25.0 km/h toward the north.

How do you get a resultant factor? A. Add two or more vectors B. Add two scalars C. Multiply two scalars D. Multiply two vectors

A panpipe is made of five pipes. The longest pipe is 25 centimeters long and the shortest is 5 centimeters long. Which of these pipe produces the highest-frequency sound and why?