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sesenic [268]
2 years ago
10

What's the name of the compound Kl?

Physics
2 answers:
astra-53 [7]2 years ago
5 0

Answer:

Potassium iodide

Explanation:

Have a good day

Nat2105 [25]2 years ago
3 0

Answer: Potassium iodide

Explanation: their you go

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In Newton’s second law, if the net force acting on object doubles. The object’s Will also double
Anna71 [15]

Answer: Explanation:

If the net force on an object is doubled, its acceleration will double If the mass of an object is doubled, the acceleration will be halved .

3 0
3 years ago
One speaker generates sound waves with amplitude A.
raketka [301]

Answer:

iv) It is 9x bigger than before

Explanation:

As the amplitudes of the new speakers add directly with the original one, taking into account the phase that they have, the composed amplitude of the sound wave is as follows:

At = A + 4A -2A = 3 A

The intensity of the wave, assuming it propagates evenly in all directions, is constant at a given distance from the source, and can be expressed as follows:

I = P/A

where P= Power of the wave source, A= Area (for a point source, is equal to the surface area of a sphere of radius r, where is r is the distance to the source along a straight line)

For a sinusoidal wave, the power is proportional to the square of the amplitude, so the intensity is proportional to the square of the amplitude also.

If the amplitude changes increasing three times, the change in intensity will be proportional to the square of the change in amplitude, i.e., it will be 9 times bigger.

So, the statement iv) is the right one.

7 0
3 years ago
Which of the following changes would decrease the coefficient of friction needed for this ride?
posledela
Friction occurs between two contacting surfaces. The coefficient of friction is very much dependent on the roughness of these surfaces. Some of the many ways in which the coefficient can be lessened or decreased are to lubricate the surface or make it shiny by eliminating the spikes which caused the roughness. 
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If I were a geologist working in South America along one of those plate boundaries, what might I see if I were looking at sedime
faust18 [17]

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4 0
3 years ago
To understand the terms in Faraday's law and to be able to identify the magnitude and direction of induced emf. Faraday's law st
wlad13 [49]

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Explanation:

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V_{\epsilon}\propto \frac{d\phi_{B}}{dt}

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