3 years ago

The law of conservation of energy states that when one from of energy is converted into another ,

Physics

1 answer:

Dahasolnce [82]3 years ago

7 0

The law of conservation states that energy cannot be created nor destroyed

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If wheel turning at a constant rate completes 100 revolutions in 10 s its angular speed is:

GenaCL600 [577]

The frequency of the wheel is given by:
$f= \frac{N}{t}$
where N is the number of revolutions and t is the time taken. By using N=100 and t=10 s, we find the frequency of the wheel:
$f= \frac{100}{10 s}=10 s^{-1}$

And now we can find the angular speed of the wheel, which is related to the frequency by:
$\omega=2 \pi f=2 \pi (10 s^{-1})=62.8 s^{-1}$

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3 years ago

After a nucleus undergoes radioactive decay, its new mass number is:

Ivanshal [37]

Radioactive "decay" means particles and stuff shoot OUT of a nucleus.
After that happens, there's less stuff in the nucleus than there was before.
So the new mass number is always less than the original mass number.

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3 years ago

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How much time will it take for a bug to travel 5 meters across the floor if it is

Inessa05 [86]

Answer:

It will take 5 seconds

Explanation:

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3 years ago

Earthquakes usually happen at: - folds - mountains - fault lines

anastassius [24]

Answer:

Fault lines

Explanation:

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2 years ago

An electric iron connected to a 110 V source draws 9 A of current. How much heat (in joules) does it generate in a minute?

meriva

Q = 110V x 9A x 60s = J

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3 years ago