Johanna makes the table below to organize her notes about centripetal forces. Which type of force should she place in the cell marked X? tension gravity friction normal

The component of a refrigeration system which changes a high pressure vapor to a high pressure liquid is the:

What do sound waves and infrared waves have in common, what makes them different

A diver is swimming underneath an oil slick with a thickness of 200 nm and an index of refraction of 1.50. A white light shines straight down towards the diver from above the oil slick. The index of refraction of water is 1.33.

what is the average speed of (a) a car that travels 400m in 20s. and (b) an athlete who runs 1500m in 4 minutes

Which of the following are examples of circular motion check all that apply A. a football kicked for a field goal B. riding on a ferris wheel C. a person jumping up and down D. a person pacing back and forth E. a satellite orbiting the Earth (apex)

The kinetic energy of an object depends on both the objects mass and velocity. a. True b. False

How does a walkie-talkie work and why do people still use them?

A 125-kg merry-go-round in the shape of a uniform, solid, horizontal disk of radius 1.50 m is set in motion by wrapping a rope about the rim of the disk and pulling on the rope.

Jose wandered 4 kilometers at 2 kilometers per hour. How long did Jose wander?

What is the acceleration of a 10kg pushed by a 5n force