2 years ago

What is the disadvantage of the solar energy?

1 answer:

6 0

Answer:

In fact, there's only one notable disadvantage to solar power that I can think of. That disadvantage is that the sun doesn't shine 24 hours a day. When the sun goes down or is heavily shaded, solar PV panels stop producing electricity. If we need electricity at that time, we have to get it from some other source.

Explanation:

hope it helps mate

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3) Principles of rectilinear proportion of light 9

8_murik_8 [283]

Answer:Principle of rectilinear propagation of light

Explanation:Principle of rectilinear propagation of light

Rectilinear propagation of light refers to the propensity of light to travel along a straight line without any interference in its trajectory. ... It is because light travels along a straight line and leaves only the areas where the object interferes.

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2 years ago

Which one of the following statements concerning the momentum of a system when the net force acting on the system is equal to ze

Alex

Answer:

Explanation:

According to newton's 2nd law rate of change of momentum is directly proportional to the force applied on the body. Since, net Force is zero this means momentum did not change or momentum of the body remained constant.

Hence, the system have constant value of momentum. Therefore, option D is correct.

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3 years ago

Give a specific example of a vector quantity. why this type of quantity would be used to describe this event ?

Anarel [89]

example force. because you can say" I applied 3 newtons downward to the floor".

force has magnitude and direcion

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3 years ago

What is the period of a wave if 3 waves passes every 6 seconds

Naya [18.7K]

Time period = time/no. of waves = 6/3 = 2s