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Yuliya22 [10]
3 years ago
8

Calculate the heat absorbed by

Physics
1 answer:
IrinaK [193]3 years ago
6 0

Answer:

Heat required to heat the given amount of water is

Q = 3.47 \times 10^7 J

Explanation:

As we know that heat required to raise the temperature of water is given as

Q = ms\Delta T

here we have

m = 105 kg

s = 4180 J/kg C

now we have

\Delta T = 99 - 20

now we have

Q = 105 (4180)(99 - 20)

Q = 3.47 \times 10^7 J

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3 years ago
A 20 kg cart moving at 4 m/s has how much momentum?
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Answer:

We conclude that the required momentum is 80 kgm/s.

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Important Tip:

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We can determine the momentum using the formula

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now substituting m = 20 and v = 4 using the equation

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