A book is sitting on a table, completely still. What would happen if gravity suddenly stopped affecting the book? A. The book would move upward. B. The book would stay where it is. C. The book would fall. D. The book would move sideways.

Despite a very strong wind, a tennis player manages to hit a tennis ball with her racquet so that the ball passes over the net and lands in her opponents court. Consider the following forces: 1 - A downward force of gravity. 2 - A force by the "hit".

You can filter the particles out of a suspensions. b colloids. c solutions. d all of the above

When you jump straight up as high as you can, what is the order of magnitude of the maximum recoil speed that you give to the Earth? Model the Earth as a perfectly solid object.

An ice sheet 5m thick covers a lake that is 20m deep. what is the temperature of the water at the bottom of the lake? explain your answer. coefficient of volume expansivity at 20 degree centigrade is 2.1x10^-4

How does gravitational force and electric force compare?

What scenario represents pseudoscience

Describe acceleration in relation to speed & velocity.

The outer planets are small, rocky planets with iron cores. True or False

A genetics tool that uses letters to represent dominant and recessive alleles

Which of the following correctly describe magnetic field lines? Check all that apply. A. They begin on north poles and end on south poles. B. They always cross. C. Field lines that are close together indicate a weaker magnetic field. D.