A coil of wire is connected to a galvanometer. When a bar magnet is moved in and out of the coil, the galvanometer records a current. The current results because of __________
Fill in the blank(s) with correct word
electromagnetic induction
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A horizontal uniform 1.20-N meter stick is held up by two vertical strings, one at the 20-cm mark and the other at the 60-cm mark. What is the tension in the string at the 60-cm mark?
A. 0.30 N B. 0.45 N C. 0.60 N D. 0.90 N E. 1.0 N
What is the change in entropy of 1.00 kg of water that is heated from 50°C to 100°C?
a. 516 cal/K b. 312 cal/K c. 144 cal/K d. 946 cal/K e. 391 cal/K
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
All waves have in common a
A) pattern. B) vibrating source. C) variable regions of high and low pressure. D) none of the above