An inductive loop buried in a roadway detects the presence of cars above it. The loop is connected to an AC supply. Will the current increase, decrease or stay the same when a car drives above the loop? a. The current will stay the same.
b. The current wil decrease.
c. The current will increase.

An implanted pacemaker supplies the heart with 72 pulses per minute, each pulse providing 6.0 v for 0.65 ms. the resistance of the heart muscle between the pacemaker’s electrodes is 550 ω. find (a) the current that flows during a pulse, (b) the energy delivered in one pulse, and (c) the average power supplied by the pacemaker.

Ascrew incorporates which other simple machine? lever wheel and axle inclined plane pulley

In which of the following cases is work being done on an object? question 2 options: pulling a trailer up a hill carrying a box down a corridor suspending a heavy weight with a strong chain pushing against a locked door