A boy slides a book across the floor, using a force of 5 N over a distance of 2

m. What is the kinetic energy of the book after he slides it? Assume there is

no friction.

O

A. 5J

O

O B. 2.5 J

O C. 103

O D. 20 J

Opposite charges attract one another. True or false

How do you find the force of an object in equalibirium?

Which type of force is found between difluorine (F2) molecules?

When the air in a submarine's huge air tanks is decompressed and it displaces the water in the ballast tanks with air, what does the submarine do? A. It sinks B. It floats C. It provides air to the passengers

Does a cup of coffee have more or less thermal energy than a giant iceberg, even though the coffee has a higher average kinetic energy?

Which compound is composed of oppositely charged ions

Sara, who weighs 66 kg, is on a guilt trip after eating a 788-Calorie (788 kcal) breakfast of pancakes loaded with fruits, cream, and syrup. She decides to work out before going to her weekly weight-watchers' meeting.

Can you get sunburned through glass?

Which statement about a signal transduction pathway is true? a. A signal transduction pathway provides a means for a signal molecule to pass through the cell membrane and initiate a chain of events inside the cell. b.

If a car is traveling on the highway at a constant velocity, the force that pushes the car forward must be A. greater than the force of friction exerted upon the car. B. less than the force of friction exerted upon the car. C.