Physics, 01.12.2020 19:00 kedjenpierrelouis
A copper wire is connected across a constant voltage source. Which change will cause an increase in the current flowing through the wire? A. an increase in the length of the wire B. an increase in the resistance of the wire C. an increase in the diameter of the wire D. an increase in the insulation around the wire
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The two stars in a certain binary star system move in circular orbits. the first star, alpha, has an orbital speed of 36 km/s. the second star, beta, has an orbital speed of 12 km/s. the orbital period is 137 d. a) what is the mass of the star alpha? b) what is the mass of the star beta?
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The center of the milky way most likely contains a. empty space. b. a red giant star. c. a globular cluster. d. a supermassive black hole.
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A copper wire is connected across a constant voltage source. Which change will cause an increase in...
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