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SVEN [57.7K]
3 years ago
12

Two objects, one of mass m and the other of mass 2m, are dropped from the top of a building. when they hit the ground

Physics
1 answer:
Setler79 [48]3 years ago
6 0
They will both hit the ground at the same time because gravitational acceleration for all objects is the same.
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What is the minimum frequency with which a 200-turn, flat coil of cross sectional area 300 cm2 can be rotated in a uniform 30-mT
sergiy2304 [10]

Answer:

The minimum frequency of the coil is 7.1 Hz

Explanation:

Given;

number of turns, N = 200 turns

cross sectional area, A = 300 cm² = 300 x 10⁻⁴ m²

magnitude of magnetic field strength, B = 30 x 10⁻³ T

maximum value of the induced emf, E = 8 V

Maximum induced emf is given as;

E = NBAω

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E = NBA2πf

where;

f is the minimum frequency, measured in hertz (Hz)

f = E / (NBA2π)

f = 8 / (200 x 30 x 10⁻³  x 300 x 10⁻⁴ x 2 x 3.142)

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Therefore, the minimum frequency of the coil is 7.1 Hz

8 0
3 years ago
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Answer:

Two forces that act in opposite directions produce a resultant force that is smaller than either individual force. To find the resultant force subtract the magnitude of the smaller force from the magnitude of the larger force. The direction of the resultant force is in the same direction as the larger force.

3 0
3 years ago
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8 0
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2 years ago
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Lady_Fox [76]
The third choice is correct
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3 years ago
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