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agasfer [191]
3 years ago
15

A heater has a resistance of 20 ohms. If the heater operates on 120-V, what is the power created by the heater?

Physics
1 answer:
Bess [88]3 years ago
6 0

Answer:

i really thought that said hater

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Answer: Option B: 1.3×10⁵ W

Explanation:

Power = \frac{Work \hspace{1mm} done}{Time}

P=\frac{W}{t}

Work Done, W= F.s

Where s is displacement in the direction of force and F is force.

\Rightarrow P = \frac{F.s}{t} =F \times \frac{s}{t}=F.v

where, v is the velocity.

It is given that, F = 5.75 × 10³N

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P = 5.75 × 10³N×22 m/s = 126.5 × 10³ W ≈1.3×10⁵W

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C. Chemical energy

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Photosynthesis is the process that plants use to transform the light energy (coming from the Sun) into chemical energy. In fact, in this process, plants absorb CO2 (from the atmosphere) and solar energy (from the light), and they convert them into sugars (glucose) and oxygen. Therefore, the initial energy coming as solar energy is converted into energy of the bonds of the molecules of glucose (so, chemical energy).

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