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igomit [66]
3 years ago
15

Derive the relation between wavelength, frequency and speed of sound.​

Physics
1 answer:
natali 33 [55]3 years ago
3 0

Explanation:

sorry I need some points foe this

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We now that follow newton rules f=ma so net force equal to mass*acceleration=>f=50*1.5=75 N
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One end of a 34-m unstretchable rope is tied to a tree; the other end is tied to a car stuck in the mud. The motorist pulls side
anyanavicka [17]

Answer:

Fc = 89.67N

Explanation:

Since the rope is unstretchable, the total length will always be 34m.

From the attached diagram, you can see that we can calculate the new separation distance from the tree and the stucked car H as follows:

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L1^2=L2^2=L^2=2^2+(H/2)^2  Replacing this value in the previous equation:

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We can now, calculate the angle between L1 and the 2m segment:

\alpha = atan(\frac{H/2}{2})=60.98°

If we make a sum of forces in the midpoint of the rope we get:

-2*T*cos(\alpha ) + F = 0  where T is the tension on the rope and F is the exerted force of 87N.

Solving for T, we get the tension on the rope which is equal to the force exerted on the car:

T=Fc=\frac{F}{2*cos(\alpha) } = 89.67N

7 0
3 years ago
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Answer:

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