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Allisa [31]
3 years ago
5

Two forces act on an object. The first force has a magnitude of 15.0 N and is oriented 78.0 ° counterclockwise from the + x ‑axi

s, whereas the second force has x ‑ and y ‑components ( − 21.0 N , 18.5 N ) . Express the magnitude and direction of the net force.
Physics
1 answer:
bezimeni [28]3 years ago
4 0

Answer:

c

Explanation:

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You are holding one end of an elastic cord that is fastened to a wall 3.0 m away. You begin shaking the end of the cord at 2.3 H
Karo-lina-s [1.5K]

Answer:

Time take to fill the standing wave to the entire length of the string is 1.3 sec.

Explanation:

Given :

The length of the one end x= 3m, frequency of the wave f = 2.3 Hz, wavelength of the wave λ = 1 m.

Standing wave is the example of the transverse wave, standing wave doesn't transfer energy in a medium.

We know,

∴ v = fλ

Where v = speed of the standing wave.

also, ∴ v=\frac{x}{t}

where t = time take to fill entire length of the string.

Compare above both equation,

⇒   t = \frac{3}{2.3} sec

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Therefore, the time taken to fill entire length 0f the string is 1.3 sec.

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How could you increase the sleds acceleration
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2 years ago
Which of the following choices defines energy in scientific terms?
snow_tiger [21]
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8 0
3 years ago
Read 2 more answers
What math term is used to describe the shape of projectile motion?
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