What is the electric force between a glass ball that has 2.5 uc charge and a rubber ball that has a - 1.5 uc charge when they are separated by a distance of 5.0 cm

Wave A has a longer wavelength than wave B, but their amplitudes are the same. Which carries more energy?

When you see a traffic light turn red, you apply the brakes until you come to a stop. If your initial speed was 12 m/s, and you were heading due west, what was your average velocity during breaking? Assume constant deceleration.

What kind of waves are responsible for all the damage an earthquake causes?

Positively charged ions are surrounded by freely moving electrons in

A car slows from 22m/s to 3.0m/a at a constant rate of 2.1m/s. How many seconds are required before the car is traveling at 3.0m/s?

Propose a hypothesis for how the position of the ball will affect the amount of its gravitational pull energy

A water-skier is pulled behind a boat by a rope that is at an angle of 13° and has a tension of 490 N. The water-skier has a mass of 49 kg. Draw a free-body diagram showing the forces acting on the skier. (She is being pulled to the right.)

The transfer of heat by the movement of a fluid is called

Robotic spacecraft have different levels of complexity, which contributes to overall cost. Which of the following types of missions are likely to be the cheapest?

Two balls are placed near one another and hang down, as shown below. Which conclusion is supported by this evidence?