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lapo4ka [179]
2 years ago
11

Which of these would be considered a drawback of hydroelectric power in an area that previously did not have access to this ener

gy source?A) I only) II only) IF only) I & II only

Physics
1 answer:
SpyIntel [72]2 years ago
3 0
Simple the answer is A and only 2 ones
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Mercury Is more suitable than water cause it is denser than water.

Relation between density and pressure

Pressure = force/area

Replace force by mass * acceleration
Pressure = mass * acceleration/ area

We can replace mass by density * volume since density = mass/ volume
Pressure = density * volume * acceleration/ area

Volume is length^3 whereas area is length ^2. So volume / area = length

Pressure = density * length * acceleration

Gravity is form of acceleration so

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Finally pressure = density * height * gravity

P = ρ g h => pressure of liquid
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3 years ago
An archer wants to hit a target that is dropped from a tower. At the sound of a horn, the archer is to shoot an arrow; at the sa
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It has to be D because the arrow will drop as it moves, if it were a gun, you'd lead the target so fire below it, but due to it being an arrow, you aim high not low. Also, they didnt specify how fast anything is, so you'd probably miss if you actually did it.


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3 years ago
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Can someone help me with one through seven I will mark you the brainly
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Answer:

1.  F = M x A

2. Force  

3. 2nd Law: Force

4. a, b, c (in order)

5. 3rd Law: Action and Reaction

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The speed of a wave is 2ms, and its wavelength 0.4 meters. What is the period of the wave?
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A common physics demonstration is to drop a small magnet down a long, vertical aluminum pipe. Describe the motion of the magnet
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Answer and Explanation:

This experiment is known as Lenz's tube.

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This emf and current oppose the flux change, therefore a field will be produced in such a direction that the magnet is repelled from below and is attracted from above. The magnitude of the flux at the bottom of the magnet increases from the point of view of the tube, and at the top it decreases. Therefore, two "magnets" are generated under and above the dipole, which repel it below and attract above. Finally, the dipole feels a force in the opposite direction to the direction of fall, therefore it falls with less speed.

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