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SSSSS [86.1K]
3 years ago
7

A bag of books took 3 minutes to move. You did 12,900 J of work. How much power was required to move the bag?

Physics
1 answer:
dlinn [17]3 years ago
4 0
The answer is 38,700.
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The total kinetic and potential energies
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Two particles, each of charge Q, are fixed at opposite corners of a square that lies in the plane of the page. A positive test c
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The magnitude of the net force is √2F.

Explanation:

Since the two particles have the same charge Q, they exert the same force on the test charge; both attractive or repulsive. So, the angle between the two forces is 90° in any case. Now, as we know the magnitude of these forces and that they form a 90° angle, we can use the Pythagorean Theorem to calculate the magnitude of the resultant net force:

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2 years ago
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A helicopter blade spins at exactly 110 revolutions per minute. Its tip is 4.50 m from the center of rotation. (a) Calculate th
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Answer:

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(b). The average velocity over one revolution is zero.

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