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Mice21 [21]
4 years ago
6

Select all the potential effects of damming a river.

Physics
2 answers:
Harrizon [31]4 years ago
8 0

Many people are in favor of the dam. Hydroelectric power is not as polluting

as other forms of electrical generation. The country is growing quickly, and

its economy is growing. The country must be able to produce more electricity

to meet everyone's needs. However, those opposed say the dams will force

many out of their homes. It will destroy an important wilderness area, and may

damage ecosystems - especially river or fjord ecosystems in Patagonia, since

silt won't be carried down rivers. Many also say that the project helps the

copper mining industry, and they believe that this project will benefit

businesses, not the people of Chile

Zina [86]4 years ago
3 0
I would say that A, B, & E are the answers
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In a simple electric generator, a conducting loop of wire is placed in a magnetic field. The loop of wire is then rotated. Why i
kaheart [24]

Explanation:

If a coil of wire is placed in a magnetic field and rotated, an alternating (sinusoidal) current is induced. As it rotates, sometimes it is cutting through lots of magnetic flux, and so lots of current is

induced.

At other times, it is moving parallel to

the flux, and so no flux is cut, and no current is induced. In between, some current is induced. This creates an alternating current. Either end of the coil can be connected to wires outside of the generator in order to use the current elsewhere. This would be fine for the

first few rotations, but after this, the wires would get tangled up and the generator would be useless. To avoid this, we use a commutator. In an AC generator, this is a pair of rotating conducting 'slip rings' attached to either end of the coil. Carbon brushes bring these into contact with the outside world.

5 0
3 years ago
If a lever is 10m long and the effort is applied 4m from the fulcrum, what is the MA of the lever?
Marizza181 [45]
We Know: MA = d₁ / d₂
Here, d₁ = 4
d₂ = 10-4 = 6

Substitute their values into the expression:
MA = 4/6
MA = 2/3

So, Your Answer would be 2/3


Hope this helps!
3 0
3 years ago
Which of the following is an ionic compound?
const2013 [10]

compound is covalent! The bond between HI is a polar covalent bond. ... It is because Hydrogen is electropositive in nature in comparison to Iodine.

7 0
3 years ago
When we see a meteor shower, it means that ________.
Irina18 [472]

Answer:

option A

Explanation:

The meteor shower is the celestial activity in which meteors are observed to radiate or originate from one point.

Meteors are nothing but dust or ice from the trails of comets. Most of the meteors are less than the size of the sand particle.

We will see comet shower when we earth will cross the orbit of the comet.

Hence, the correct answer is option A

6 0
4 years ago
What is science please help
Brums [2.3K]

Answer:

Explanation:

Science is an objective, self correcting method for gathering and organizing information about the natural world through repeated observation and experimentation.

3 0
3 years ago
Read 2 more answers
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