Two positive charges of magnitude 20 micro C and 100 micro C are placed at a distance of 150cm. Calculate the electric force of repulsion between them.

How can we run out of energy if energy cannot be created or destroyed?

An ideal coil and an ideal capacitor can be connected in series or in parallel. The circuits so formed are fed to the same sinusoidal alternative voltage.

For a ball that is dropped from rest, what is its average velocity from t=1s to t=2s?

8. Why are objects that fall near Earth's surface rarely in free fall? Gravity does not act on objects near Earth's surface. Air exerts forces on falling objects near Earth's surface. The objects do not reach terminal velocity.

What gas law states that the total atmospheric pressure is the sum of the contributions of the individual gases?

Which transfer of energy occurs mainly through the process of convection?

The statement, "All basketball players are tall" is a stereotype.

Lonnie pitches a baseball of mass 0.20 kg. The ball arrives at home plate with a speed of 40 m/s and is batted straight back to Lonnie with a return speed of 60 m/s. If the bat is in contact with the ball for 0.

7. What type of mineral can scratch glass, but cannot scratch steel? A. Gypsum B. Diamond C. Feldspar D. Fluorite

What factors determine the electrostatic force between two objects?