PLEASE HELP! Imagine a simple circuit with a battery supplying a single resistor. If a second resistor was added to the circuit wired in series with the first, the current going through the first resistor would:

A) decrease
B) it would depend on whether the second resistor had a higher or lower resistance
C) stay the same
D) increase

Acave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. the lift is performed in three stages, each requiring a vertical distance of 10.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.90 m/s; (b) he is then lifted at the constant speed of 4.90 m/s; (c) finally he is decelerated to zero speed. how much work is done on the 68.0 kg rescue by the force lifting him during each stage?

What will a positive and a negative charge do if they are separated from each other?

The slope of a velocity time graph over any interval of time gives the during that interval