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sattari [20]
3 years ago
13

Which of the following is an advantage of using solar energy?

Physics
2 answers:
miskamm [114]3 years ago
6 0
C. It is a form of free and abundant energy.
natima [27]3 years ago
4 0

Answer:

C

Explanation:

Bc it provides free energy from the sun

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The intensity of light from a central source varies inversely as the square of the distance. If you lived on a planet only half
sertanlavr [38]

Answer:

the intensity will be 4 times that of the earth.

Explanation:

let us assume the following:

intensity of light on earth =J

distance of earth from sun = d

intensity of light on other planet = K

distance of other planet from sun = \frac{d}{2} (from the question, the planet is half as far from the sun as earth)

from the question the intensity is inversely proportional to the square of the distance, hence

  • intensity on earth : J = \frac{1}{d^{2} }

        Jd^{2} = 1 ... equation 1

  • intensity on other planet : K =  \frac{1}{(\frac{d}{2}) ^{2} }  (the planet is half as far from the sun as earth)

        K(\frac{d}{2}) ^{2} = 1 ....equation 2

  • equating both equation 1 and 2 we have

       Jd^{2} = K(\frac{d}{2}) ^{2}

       Jd^{2} = K\frac{d^{2}}{4}

       J = \frac{K}{4}

        K = 4J

       intensity of light on other planet (K) = 4 times intensity of light on earth (J)

5 0
3 years ago
Can anyone explain what weak force could do? I’ve been reading comics and I don’t understand what they can do when it says “they
Morgarella [4.7K]

Explanation:

To my understanding of comic books, weak force indicates that the hero was strong enough to overcome its powers...

4 0
4 years ago
When the force applied to an object increases, the motion of the object​
Elza [17]

Answer:

Semen is the most important thing in the life cycle of life

6 0
4 years ago
Answer ?
morpeh [17]

Answer:

2.75 m/s^2

Explanation:

The airplane's acceleration on the runway was 2.75 m/s^2

We can find the acceleration by using the equation: a = (v-u)/t

where a is acceleration, v is final velocity, u is initial velocity, and t is time.

In this case, v is 71 m/s, u is 0 m/s, and t is 26.1 s Therefore: a = (71-0)/26.1

a = 2.75 m/s^2

5 0
2 years ago
a bowling ball and a baseball both roll across your foot at the same speed. The bowling ball hurts more
Maru [420]

Answer:

you are right bowling ball has more mass and it is denser than a baseball

Explanation:

5 0
3 years ago
Read 2 more answers
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