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skad [1K]
3 years ago
8

Someone says, "When we burn coal, we are using the energy of ancient sunlight." Write a scientific explanation of what this mean

s.
Physics
1 answer:
Serhud [2]3 years ago
4 0
Coal is a fossil fuel. Fossil fuels are formed from buried remains of plants and animals that lived millions of years ago. These ancient remains fossilize into coal.
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Answer:

268.2 m/s (1dp)

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Round your answers to one decimal place.this parallel circuit has two resistors at 15 and 40 ohms. what is the total resistance?
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1) The equivalent resistance of two resistors in parallel is given by:
\frac{1}{R_{eq}}= \frac{1}{R_1}+ \frac{1}{R_2}
so in our problem we have
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2) If we have a battery of 12 V connected to the circuit, the current in the circuit will be given by Ohm's law, therefore:
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<span>c. Mammal teeth do different jobs and are different sizes and shapes</span>
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Answer:

a) True.

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