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Question
An electric heater is rated 300W 110V. The safety fuse in the circuit can withstand 15 A of current. How many heaters can be safely operated in the circuit?A) 2
B) 3
C) 4
D) 5
E) more than 5
Answer
This answer is hidden. It contains 1 characters.
Related questions
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B) one-fourth as far.
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Q:
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A) is more concentrated.
B) meets less resistance than the cannon on the ground.
C) acts over a longer distance.
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Q:
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B) 12 kg.
C) 16 kg.
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Q:
The speed of a 4-kg ball with a momentum of 12 kg m/s is
A) 3 m/s.
B) 4 m/s.
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D) 48 m/s.
E) none of the above
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C) four times as much.
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Q:
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A) less than half her weight.
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Q:
When a cannonball is fired from a cannon, which undergoes the greater acceleration?
A) the cannonball
B) the recoiling cannon
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A) somewhat greater than Moon's pull on Earth.
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A) air resistance acting against the ball.
B) acceleration of the ball.
C) ball's pull on Earth.
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A) must be a net force on the system.
B) may or may not be a net force on the system.
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Q:
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Q:
A fast-moving missile soaring overhead possesses
A) speed.
B) force.
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