It takes 20 N of force to move a box a distance of 10 m. How much work is done on the box?

Which statements describe oceanic crust? select the two correct answers. a. it is between 25 and 70 km thick. b. its age ranges from very young to more than 4 billion years old. c. it is formed at zones of volcanic activity on the ocean floor. d.

Which type of energy increases when you compress a spring? A. Elastic Potential Energy B. Kinetic Energy C. Radiant Energy D. Sound Energy

A kid is on a stationary sled, on snowy ground with Us=0.125. It takes 71.2N of force to get the sled moving. How much normal force is acting?

The velocity of Desmond's car changes from 20 meters/second to 10 meters/second. The change happens in 5 seconds. What's the acceleration of the car? a. 4 m/s2 b. 2 m/s2 c. - 2 m/s2 d. - 4 m/s2

Why did scientists using classical, Newtonian physics have difficulty explaining the photoelectric effect? A. Classical physics considered light to be neither a wave nor a particle. B. Classical physics viewed light as a wave. C.

A horizontal line on a phase-change graph indicates

How many Joules in 41.87 kcal?

A cyclist travels for 30 min with an average speed of 10km/h. How far does she travel?

All of the following statements about protons are true except? a) protons carry a positive charge b) protons are found in the nucleus of an atom. c) protons cicle the nucleus of an atom d) protons have a mass of 1 amu.

What forces were exerted during the air resistance experiment?