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dangina [55]
4 years ago
7

Which statement is a scientific theory?

Physics
1 answer:
lesya692 [45]4 years ago
3 0

Answer:

A.

Explanation:

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A sinusoidal wave travels along a string. if the time for a particular point to move from maximum displacement to zero displacem
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The time it takes for a point to reach 0 displacement from maximum displacement is \frac{\pi}{2} of a cycle. Thus, one period (2\pi) will take T=0.17*4=0.68s.

The frequency is simply f=\frac{1}{T}=\frac{1}{0.68}=1.47Hz.

The speed is given by: v=f\lambda=1.47*1.4 = 2.06m/s
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4 years ago
A 720 kg roller-coaster starts off from Location A. Assuming friction does not impede the car's motion, what will be the change
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We know, Potential Energy = m * g * h
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Hope this helps!
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