Aman standing on a bus remains still when the bus is at rest. when the bus moves forward and then slows down the man continues moving forward at the original speed. this is an example of the effect of
a. gravity.
b. weight.
d. inertia.

Acharge of 8.4x10^-4 c moves at an angle of 35 degrees to a magnetic field that has a field strength of 6.7x10^-3 t. if the magnetic force is 3.5 x10 ^-2 n, how fast is the charge moving?

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

Suppose that 27 j of work is needed to stretch a spring from its natural length of 6 m to a length of 9 m. (a) how much work is needed to stretch the spring from 12 m to 14 m? j (b) how far beyond its natural length will a force of 78 n keep the spring stretched?