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3 years ago

An iceberg at its melting point

Physics

1 answer:

iren2701 [21]3 years ago

5 0

The mass of the iceberg is 71.9 kg

Explanation:

The amount of thermal energy needed to completely melt a substance at its melting point is given by

$Q=\lambda m$

where

$\lambda$ is the latent heat of fusion

m is the mass of the substance

In this problem, we have a block of ice at its melting point (zero degrees). The amount of heat given to the block is

$Q=2.40\cdot 10^7 J$

And the latent heat of fusion of ice is

$\lambda = 334 J/g$

So, we can re-arrange the equation to find m, the amount of ice that will melt:

$m=\frac{Q}{\lambda}=\frac{2.40\cdot 10^7}{334}=71856 g = 71.9 kg$

Learn more about specific heat:

brainly.com/question/3032746

brainly.com/question/4759369

#LearnwithBrainly

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Solution :

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Rate at which the engine takes in air, $S_{air}$ = 85.9 kg/s

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Therefore, the upward thrust of the jet engine is given by

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3 years ago

What is the form of energy that batteries store energy as

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Answer:

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Explanation:

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mass of plastic ball = 11 g

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3 years ago

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Gnesinka [82]

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Explanation:

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BOTH MUST BE EQUAL FOR IT TO BE ADJUSTED!!!!!

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3 years ago