A 120-? laboratory resistor is rated at 0.25 W. How much current can safely flow through the resistor?
A) 30 A
B) 2.1 mA
C) 22 mA
D) 46 mA
D
Physics & Space Science
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The speed of a vertically-thrown ball at the top of its path is
A) zero. B) 10 m/s2. C) between zero and 10 m/s2. D) dependent on the mass of the ball.
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The larger the value of Hubble's constant, the more rapid the expansion of the universe and the smaller (and hence younger) our estimate for the age of the universe
Indicate whether the statement is true or false
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The net direction in which electrons flow through a circuit is:
A) the direction of the conventional current. B) opposite of the direction of the conventional current.
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Answer the following statement(s) true (T) or false (F)
1. Momentum is not conserved in an inelastic collision 2. Energy is not conserved in an inelastic collision.
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