Two people are pushing a couch from opposite sides. one person pushes with a force of 2 N. the other person pushes with a force of 4 N. which of the following best describes how the couch will move?

What group would an element be in if they had 2 electrons in the outer shell?

A scientist divided a population of fruit flies into two containers, each with a different kind of food. then she bred the fruit flies under these conditions for many generations.

A 2 kg object is moving west at 4 m/s. It takes 2.0 s to slow down to 2 m/s, still moving west. What is the change in momentum, ΔP, of the object? a. 4.0 kg∙m/s, west b. 4.0 kg∙m/s, east c. 2.0 kg∙m/s, west d. 2.0 kg∙m/s, east

Which of the following statements are true about gravity? Check all that apply. A. Gravity exists between two or more objects that have mass. B. Gravity doesn't exist between the Earth and the sun. C. Gravity exists only on Earth. D.

Equal masses of he and ne are placed in a sealed container. What is the partial pressure of he if the total pressure in the container is 6 atm?

Make a table table that shows the causes and effects of local winds and monsoons

A stone is dropped from the roof of a high building. A second stone is dropped 1.00 s later. How far apart are the stones when the second one has reached a speed of 14.0 m/s?

1. While skiing, Sam flies down a hill and hits a jump. He has a mass of 75 kg, and he leaves the jump at 18 m/s. What is his momentum as he leaves the jump?

After traveling for 6.0 seconds, a runner reaches 10m/s. What is the runner's acceleration?

A heavy rope, 50 ft long, weighs 0.5 lb/ft and hangs over the edge of a building 120 ft high. how much work is done (in ft-lb) in pulling half the rope to the top of the building?