A body is oscillating up and down at the end of a spring. Let's consider when the body is at the top of its up and down motion. The acceleration
a. is zero c. points up
b. has its largest magnitude d. points down
B, D
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The safety fuse in an electric circuit is connected to the circuit in
A) series. B) parallel. C) either series or parallel.
To measure the current through and the voltage across a resistor in a circuit, you should place the ammeter in _____ with the resistor and the voltmeter in _____ with the resistor
a. series, series b. parallel, series c. parallel, parallel d. series, parallel
A heat engine has an efficiency of 35.0% and receives 150 J of heat per cycle
(a) How much work does it do in each cycle? (b) How much heat does it "waste" in each cycle?
Electric dipoles always consist of two charges that are
A) equal in magnitude; opposite in sign. B) equal in magnitude; both are negative. C) equal in magnitude; both are positive. D) unequal in magnitude; opposite in sign. E) unequal in magnitude; both are negative.