A barometer can work because of a bimetallic strip
Indicate whether the statement is true or false
F
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How many nodes and antinodes are shown in the standing wave above?
a. two nodes and three antinodes b. one node and two antinodes c. one-third node and one antinode d. three nodes and two antinodes
Acceleration due to gravity on the Moon is less than on Earth, and the Moon is smaller than Earth. This means that compared to an Earth satellite, a satellite in close orbit about the Moon would travel
A) slower. B) faster. C) the same. D) need more information
A large, metallic, spherical shell has no net charge. It is supported on an insulating stand and has a small hole at the top. A small tack with charge Q is lowered on a silk thread through the hole into the interior of the shell. What is the charge on the outer surface of the shell?
1.Q 2.Q/2 3.0 4.-Q/2 5.-Q
A sinusoidally varying potential difference has amplitude 170 V. What is its average value?
1.170 V 2.120 V 3.0 4.-120 V 5.-170 V