Which statement is true about wind energy? A) It is clean and non-polluting. B) It is only effective near water. C) It is costly and hard to produce. D) It is not as useful as fossil fuels.

According to the graph, what is the motorcycle's average velocity?

A model airplane with mass 0.5 kg hangs from a rubber band with spring constant 45 N/m. How much is the rubber band stretched when the model airplane hangs motionless?

What is an extrasolar planet? a. A planet that is considered an "extra," in that it was not needed for the formation of its solar system. b. A planet that is extra large compared to what we'd expect. c. A planet that is larger than the Sun. d.

Felipe drives his car at a velocity of 28 m/s. He applies the brake, which slows the vehicle down at a rate of 6.4 m/s2 and causes it to slow to a stop. How long does it take for the car to stop

A rat of mass 0.25 kg runs at a speed of 1.25 m/s. What is the momentum of the rat?

How much work is done when a 4.0-newton box is carried horizontally a distance of 2.0 meters at a constant velocity?

You push a shopping cart filled with groceries (total mass = 20 kg) by applying a force to the cart 30° from the horizontal. If the force you apply has a magnitude of 86 N, what is the cart's acceleration? Assume negligible friction.

Does water expand more as the temperature drops even more below 0 deg? I am worried about the coolant in my rad. as the temp. is 40deg below.

A 1.00-kilogram ball is dropped from the top of a building. just before striking the ground, the ball's speed is 12.0 meters per second.

Why oil does not dissolve in water?