What is the nature of force between two charges if q1+q2=0

A rectangular current loop is located near a long, straight wire that carries a current of 12 A. The current in the loop is 25 A. Determine the magnitude of the net magnetic force that acts on the loop.

In your own words describe an interaction between the chromosphere and the hydrosphere

A ball is released from a hot air balloon moving downward with a velocity of - 10.0 meters/second and a height of 1,000 meters. How long did it take the ball to reach the surface of Earth? Given: g = - 9.8 meters/second2

What is the current in a circuit that has voltage of 121.3 V and a total resistance of 56.3 Ohms? Include units.

How does magnet polarity affect the current flowing in a loop of wire?

Explain the relationship between motion and frame of reference.

Two students are looking at a brightly lit full Moon, illuminated by the reflected light from the Sun. Consider thefollowing discussion between the two students about what the spectrum of moonlight would look like.

When performing a battery load test, what should the load be set to?

If you push on a wall of a building what will happen

A conductor, with outer surface labelled a, contains a cavity, inner surface b. In this cavity there is a conducting sphere of radius r, and surface c. The sphere carries a charge of 1 C, while the conductor a charge of 2 C.