Jill does twice as much work as Jack does and in half the time. Jill's power output is
A) the same as Jack's power output.
B) one-fourth as much as Jack's power output.
C) one-half as much as Jack's power output.
D) twice Jack's power output.
E) four times Jack's power output.
E
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Fill in the blank(s) with correct word
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A. 0.11 mA B. 81 kA C. 0.33 mA D. 9.0 kA
A 1.15-kg grinding wheel 22.0 cm in diameter is spinning counterclockwise at a rate of 20.0 revolutions per second
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When an electron in an atom is excited from a lower energy level to a higher one, a ______________ is ______________
a. proton; absorbed b. proton; emitted c. photon; absorbed d. photon; emitted