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Brums [2.3K]
3 years ago
10

Pls help asap, will mark as brainliest if correct!!

Physics
1 answer:
jeyben [28]3 years ago
8 0

Answer:

PRO'S OF SOLAR ENERGY: reduced electricity bills, low maintenance cost, renewable energy source.

CONS OF SOLAR ENERGY: Cost, relies on weather, takes up a lot of space.

PROS OF WIND ENERGY: Clean environment, cost effective, Free

CON'S OF WIND ENERGY: Wind turbines are noisy, strength of wind is not always reliable

PROS OF GEOTHERMAL ENERGY: Save about 30% - 60% on heating and cooling, not weather dependent.

CONS OF GEOTHERMAL ENERGY: Greenhouse emission, high investment cost, requires a lot of land.

PROS OF BIOMASS ENERGY: Reduced dependence on fossil fuels, carbon neutral, waste reduction.

CONS OF BIOMASS ENERGY: Emissions, deforestation. cost.

PROS OF HYDROELECTRIC ENERGY: Good for the environment, reliable, efficient.

CONS OF HYDROELECTRIC ENERGY: Expensive, not always safe, you can't place hydroelectric energy anywhere you want.

***If you found my answer helpful, please give me the brainliest. :) ***

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What is the waste energy at the hydropower plant? *
Andrei [34K]
A hydroelectric power station wasted energy is mainly kinetic energy of the water which is already used and is leaving that station with a certain speed at the outlets called 'draft tube losses'
4 0
3 years ago
The diagram shows vectors that are not perpendicular to one another.
Artist 52 [7]

The angle of the resultant vector, rounded to the nearest tenth is determined as 36.9⁰.

<h3>Magnitude of components vectors</h3>

The resultant vector of the three vectors can be determined from the magnitude of the components vectors.

     Ex   = 2

     Fx   = 4

     Gx  = 2

     Ey =   2

     Fy =   1

     Gy =  3

∑Vx = Ex + Fx + Gx  = 2 + 4 + 2 = 8

∑Vy = Ey + Fy + Gy = 2 + 1 + 3 = 6

<h3>Angle of the resultant vector</h3>

tanθ = Vy/Vx

tanθ = 6/8

tanθ = 0.75

θ = tan⁻¹(0.75)

θ =  36.9⁰

Thus, the angle of the resultant vector, rounded to the nearest tenth is determined as 36.9⁰.

Learn more about resultant vector here: brainly.com/question/110151

#SPJ1

8 0
2 years ago
Which describes a velocity?
SpyIntel [72]

Answer: B

Explanation:

<em>Velocity</em> is the speed of an object <u>but in a particular direction. </u>

<u></u>

If you look, answer choices A, C, and D, all give certain speeds, but they don't give any direction, like north east west or south. Only B gives the speed in a particular direction (north).

Hope this helps :))

5 0
2 years ago
Read 2 more answers
How do the units that are used to measure heat differ from the units that are used to measure temperature?
irakobra [83]
Heat is measured in joules and temperature is measured in F degrees or C degrees.
6 0
4 years ago
The chart shows the speed at which light travels through different media.
sammy [17]

Answer:

Air.

Explanation:

To know which option is correct, let us consider the relationship between velocity and the wavelength of a wave. This is illustrated below:

Velocity, wavelength and frequency are related by the following equation:

Velocity = wavelength × frequency

v = λf

From the equation above, we can see clearly that the velocity is directly proportional to the wavelength.

This means that an increase in the wavelength will lead to an increase in the velocity and also, a decrease in the wavelength will lead to a decrease in the velocity.

Now, considering the table given in the question above, we can see that the wave has a higher speed in air. This simply means that the wave will also have a higher wavelength in air.

Thus, the correct answer to the question is: air

4 0
3 years ago
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