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2 years ago

7

Water is kept in a vessel at a temperature of 100°C. What would happen if a metal ball having a temperature of 30°C is dropped i

n it? Mention the direction of the heat flow.

1 answer:

lesya [120]2 years ago

3 0

Answer:

there will be a heat flow from water to the metal ball...

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Imagine you derive the following expression by analyzing the physics of a particular system: M= (mv2r)(mGr2). Simplify the expre

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The simplified expression is $M = \frac{v^2 r}{G}$

Explanation:

From the question we are told that

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2 years ago

How many calories are equal to one BTU? (One calorie = 4.186 J, one BTU = 1 054 J.)

I am Lyosha [343]

<h2>Option C is the correct answer.</h2>

Explanation:

We need to find how many calories is 1 BTU.

Given

1 BTU = 1054 J

1 calorie = 4.186 J

So we have

1 BTU = 4.186 x 251.79 J

1 BTU =251.79 calorie

1 BTU = 252 calorie.

Option C is the correct answer.

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2 years ago