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Monica [59]
3 years ago
12

What is the amplitude of this wave? 13 cm 21cm 26 cm42 cm​

Physics
2 answers:
zavuch27 [327]3 years ago
5 0

Answer:

The answer is actually 2.1 cm. You didn't put the decimal in the numbers when you asked the question. I just took this quiz and this was the correct answer.

Explanation:

svetoff [14.1K]3 years ago
3 0
The answer to your question is 42cm
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A heavy rock is shot upward from the edge of a vertical cliff. It leaves the edge of the cliff with an initial velocity of 12 m/
jenyasd209 [6]

Answer:

The height of the building is 88.63 m.

Explanation:

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time of flight is calculated as;

x = u_i t

t = x / u_i

t = 40.4 / 10.786

t = 3.75 s

Determine the final vertical velocity of the ball;

v_f = v_i + gt\\\\v_f = 5.26 + (9.8 *3.75)\\\\v_f = 42.01 \ m/s

Determine the height of the rock;

v_f^2 = v_i^2 + 2gh\\\\h = \frac{v_f^2 - v_i^2}{2g}\\\\ h = \frac{(42.01)^2 - (5.26)^2}{2*9.8}\\\\h = 88.63 \ m

Therefore, the height of the building is 88.63 m.

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3 years ago
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