A pendulum clock at high altitudes runs
A) fast.
B) slow.
C) normally as it does at sea level.
Answer: B
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the energy stored in the capacitor
A. quadruples. B. doubles. C. remains the same. D. is reduced by a factor of two. E. is reduced by a factor of four. F. some other result (specify).
A generator has 200 turns of wire on a coil of radius 2.00 cm. What rotational speed is necessary to produce an emf of amplitude 4.50 V if the magnetic field in the region of the coil is 0.180 T?
A. 60.0 rad/s B. 16.0 rpm C. 100 rpm D. 500 rpm E. 950 rpm
Explain how we can estimate that there are about 50-100 billion galaxies in the observable universe
What will be an ideal response?
What happens during a penumbral lunar eclipse? a. Earth only partially enters the penumbra. b. Earth enters the entire penumbra
c. The Moon partially enters the penumbra. d. The Moon only partially enters the umbra. e. Earth only partially enters the penumbra.