3 years ago

Need help anybody thanks

1 answer:

4 0

If there are no windows, then the illumination in the room depends
only on the room and what's in it, not on anything outside.
The time of day has no effect. The other things all do.

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Which of the following is an example of sound energy

dedylja [7]

Sound energy is produced when an object vibrates so an example would be a telephone ringing or someone playing a bass guitar

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3 years ago

What is the difference between acceleration and linear acceleration?

Akimi4 [234]

Explanation:

Linear acceleration is a type of acceleration of a body along a straight path or line.

Acceleration is defined as the rate of change of velocity with time.

Acceleration = $\frac{Change in velocity}{time}$

There are different types of acceleration .

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3 years ago

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4 years ago

Producing a current by moving a wire through a magnetic field is called<br> induction

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Answer:

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3 years ago

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A solar cell that transforms 300 J of light energy into 45 J of electrical energy and 255 J of wasted energy. whats the efficien

Setler [38]

Answer:

15%

Explanation:

Step one:

Given data

Energy source= 300J

Useful energy = 45J

Waste energy = 255J

Required

The efficiency of the solar system

Step two:

The efficiency is computed by factoring only the useful work and the energy source

Efficiency= 45/300*100

Efficiency= 0.15*100

Efficiency= 15%

3 0

3 years ago