A mass attached to a spring is drawn back 2 cm from equilibrium and released. If a second spring were used that had a smaller spring constant than the first but the mass was the same, which of the following would be larger?
A. Amplitude
B. Initial restoring force
C. Frequency
D. Period
Answer: D
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Which of the following statements about this capacitor are true? (There may be more than one correct choice.) A) The capacitance has doubled. B) The electric field between the plates has increased. C) The energy stored in the capacitor has doubled. D) The energy density in the capacitor has increased. E) The potential difference across the plates has doubled.
How do we know the interior composition of Jupiter?
A. Astronomers examined Jupiter's spectrum. B. Astronomers calculated Jupiter's average density and compared it to those of abundant candidate materials, taking gravitational compression into account. C. Astronomers studied earthquake waves using instruments on Jupiter's surface. D. All of these choices are correct.
Mike performed 5 J of work in 10 secs. Joe did 3 J of work in 5 secs. Who produced the greater power?
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As temperature increases in metals and polymers, the yield stress _________.
Fill in the blank(s) with the appropriate word(s).