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Blababa [14]
3 years ago
10

A disadvantage of hydroelectric power is _____.

Physics
2 answers:
julsineya [31]3 years ago
8 0
It can impact the waters by polluting it and impact fish life's and if we have a drought we can't use this power source 
oksian1 [2.3K]3 years ago
4 0
Hydropower<span> doesn't pollute the air like </span>power<span> plants that burn fossil fuels, such as coal or natural gas. </span>Hydropower is<span> a domestic source of energy, produced in the United States. </span>Hydropower<span> relies on the water cycle, which is driven by the sun, thus it's a renewable </span>power<span>source.</span>
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Why do marine west coast climates have much precipitation
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The fronts of the water create clouds so it has a lot of precipitation

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3 years ago
What is the electric force on a proton 2.5 fm from the surface of the nucleus? hint: treat the spherical nucleus as a point char
Whitepunk [10]
In this case, you need the formula below where:

F = force
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F = k((q1.q2)/r^{2})

pls note: make sure your units are correct (in meters etc, not fm (<em>femto-meters</em>)).

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6 0
3 years ago
A gymnast of mass 62.0 kg hangs from a vertical rope attached to the ceiling. You can ignore the weight of the rope and assume t
MrRissso [65]

Answer:

a) T = 608.22 N

b) T = 608.22 N

c) T = 682.62 N

d) T = 533.82 N

Explanation:

Given that the mass of gymnast is m = 62.0 kg

Acceleration due to gravity is g = 9.81 m/s²

Thus; The weight of the gymnast is acting downwards and tension in the string acting upwards.

So;

To calculate the tension T in the rope if the gymnast hangs motionless on the rope; we have;

T = mg

= (62.0 kg)(9.81 m/s²)

= 608.22 N

When the gymnast climbs the rope at a constant rate tension in the string is

= (62.0 kg)(9.81 m/s²)

= 608.22 N

When the gymnast climbs up the rope with an upward acceleration of magnitude

a = 1.2 m/s²

the tension in the string is  T - mg = ma (Since acceleration a is upwards)

T = ma + mg

= m (a + g )

= (62.0 kg)(9.81 m/s² + 1.2  m/s²)

= (62.0 kg) (11.01 m/s²)

= 682.62 N

When the gymnast climbs up the rope with an downward acceleration of magnitude

a = 1.2 m/s² the tension in the string is  mg - T = ma (Since acceleration a is downwards)

T = mg - ma

= m (g - a )

= (62.0 kg)(9.81 m/s² - 1.2 m/s²)

= (62.0 kg)(8.61 m/s²)

= 533.82 N

5 0
3 years ago
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Alexxx [7]

Well, in my own personal case, I can actually move the air in either
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When I move the air inward from the outside, it's warmed and moistened.

When I move it outward from the inside, it's not.
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3 years ago
Read 2 more answers
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