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3 years ago

8

Two students hold a rope between them. They wiggle it in a way so that the crest of one wave reaches the crest of the other, inc

reasing its amplitude. This is an example of.
A. Destructive interference
B. Constructive interference
C. Wavelength
D. Medium

1 answer:

alexdok [17]3 years ago

6 0

I think constructive interference

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emmainna [20.7K]

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4 years ago

The magnitude of each force is 208 N the force on the right is applied at an angle 36° and the mass of the block is 17 kg the co

djyliett [7]

Answer:

<em>11.06m/s²</em>

Explanation:

According to Newtons second law of motion

$\sm F_x = ma_x\\F_m - F_f = ma_x\\mgsin \theta - \mu R mgcos \theta = ma_x\\$

Given

Mass m = 17kg

Fm = 208N

theta = 36 degrees

g = 9.8m/s²

a is the acceleration

Substitute

208 - 0.148(17)(9.8)cos 36 = 17a

208 - 24.6568cos36 = 17a

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188.05 = 17a

a = 188.05/17

a = 11.06m/s²

<em>Hence the the magnitude of the resulting acceleration is 11.06m/s²</em>

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3 years ago

I don’t understand I need help asap

hammer [34]

For the first question, you got them right, for the two you left blank, initial(beginning) velocity: 2 m/s the final velocity is: 12 m/s

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What is the Morgan-Keenan Spectral Classification system?

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3. sorry, i dont know

4. c

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3 years ago