A metallic shell having inner radius r1 and outer radii r2 has a point charge q kept inside the cavity. Electric field in the region r1 < r < r2 where r is the distance from the center is given by.

Select the three ways that the parallel-plate capacitor differs from a car battery.

Ahot-air balloon is 11.0 m above the ground and rising at a speed of 7.00 m/s. a ball is thrown horizontally from the balloon basket at a speed of 9.00 m/s. ignore friction and air resistance and find the speed of the ball when it strikes the ground.

The amount of work done is determined by 2 factors. describe an example of work (using the scientific definition) list the 2 factors that determine the amount of work done.