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valentina_108 [34]
3 years ago
15

WILL MARK BRAINLIEST!!!!

Physics
2 answers:
zloy xaker [14]3 years ago
7 0

Answer:

Wave model

Explanation:

Anika [276]3 years ago
7 0

Answer:

The answer would be a wave model

Explanation:

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The best option is C. This is due to friction.
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3 years ago
A horizontal force of 400 N is exerted on a 2.0-kg ball as it rotates (at
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Answer:

the speed of the ball is 10 m/s

Explanation:

Given;

magnitude of exerted force, F = 400 N

mass of the ball, m = 2 kg

radius of the circle, r = 0.5

The speed of the ball is calculated by applying centripetal force formula;

F = \frac{mv^2}{r} \\\\v^2 = \frac{Fr}{m}\\\\v = \sqrt{\frac{Fr}{m}}\\\\ v = \sqrt{\frac{400*0.5}{2}}\\\\v = 10 \ m/s

Therefore, the speed of the ball is 10 m/s

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3 years ago
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micrometer is used to measure the diameter of a thin wire

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a particle with a charge of 5.5 x 10^-8 c is 3.5 cm from a particle with a charge of -2.3 x10^-8 c. the potential energy of this
Yuri [45]

Answer:

-32.5 * 10^-5 J

Explanation:

The potential energy of this system of charges is;

Ue = kq1q2/r

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q1 and q2 are the magnitudes of the charges

r is the distance of separation between the charges

Substituting values;

Ue = 9.0×10^9 N⋅m2/C2 * 5.5 x 10^-8 C *( -2.3 x10^-8) C/(3.5 * 10^-2)

Ue= -32.5 * 10^-5 J

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