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4 years ago

9

What is a wave that has all the crests and troughs in the same place at the same time?

2 answers:

sweet-ann [11.9K]4 years ago

8 0

For the answer to the question above, it is called wavelength. It is f<span>orms of electromagnetic radiation like radio waves, light waves or infrared (heat) waves make characteristic patterns as they travel through space. Each wave has a certain shape and length.</span>

slega [8]4 years ago

3 0

Wavelength
is the answer

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Schach [20]

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3 years ago

A drum rotates around its central axis at an angular velocity of 19.8 rad/s. If the drum then slows at a constant rate of 3.02 r

Debora [2.8K]

a) Time taken =6.39 s

b) Angle of rotation while coming to rest = 188.17 rad

<u>Explanation:</u>

Initial angular velocity of the drum $\omega_{0} = 19.8 rad/s^{2}$

Angular acceleration of the drum $\alpha = -3.02 rad/s^{2}$

a.) We know that

$\omega =\omega_{0} + \alpha t$

$0 = 19.8 - 3.02 t$

$t = \frac{19.8}{3.02}$

$t = 6.39s$

b.) we know that

$\theta = \omega_{0} t + \frac{1}{2} \alpha t^{2}$

$\theta = 19.8 \times 6.39 + \frac{1}{2} \times 3.02 \times 6.39^{2}$

$\theta =188.17 rad$

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HELP HELP.....................

tatiyna

Hi,

Your question is "which graph represents uniform motion", the answer would be option 1

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