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ValentinkaMS [17]
3 years ago
5

Select the best statement

Physics
1 answer:
s2008m [1.1K]3 years ago
5 0
The correct answer is B. hopes this help
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Four ways to increase magnitude of current in dynamo​
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Answer:

hmm

Explanation:

By increasing the number of turns in the coil, strength of magnetic field, speed of rotation of the coil in the magnetic field and by decreasing the distance between the coil and the magnet the magnitude of the induced e.m.f. can be increased in generator/dynamo.

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Planets in our solar system do not revolve around the sun in perfect circles. Their orbits are more like ovals that scientists describe as elliptical. It is one of Kepler's laws. The sun is the focus of all the planets. The correct answer is D.
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What are the SI units for distance and time?
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Answer:

distance is meters, time is seconds

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3 years ago
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A father fashions a swing for his children out of a long rope that he fastens to the limb of a tall tree. As one of the children
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Answer:

The centripetal acceleration of the child at the bottom of the swing is 15.04 m/s².

                     

Explanation:

The centripetal acceleration is given by:

a_{c} = \frac{v^{2}}{r}

Where:

v^{2}: is the tangential speed = 9.50 m/s

r: is the distance = 6.00 m

Hence, the centripetal acceleration is:

a_{c} = \frac{v^{2}}{r} = \frac{(9.50 m/s)^{2}}{6.00 m} = 15.04 m/s^{2}

Therefore, the centripetal acceleration of the child at the bottom of the swing is 15.04 m/s².

I hope it helps you!

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Your thumb points in the direction of the charge.

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