3 years ago

DEFINE HEAT CAPACITY

Physics

2 answers:

Neporo4naja [7]3 years ago

8 0

The number of heat units needed to raise the temperature of body by on degree

Rudiy273 years ago

4 0

The number of heat units needed to raise the temperature of a body by one degree.

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One mole of water is equivalent to 18 grams of water. A glass of water has a mass of 200 g. How many moles of water is this?

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Explanation:

Given that,

Height from a ball falls the ground, h = 17.3 m

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We need to find the average acceleration the ball during the time it is in contact with the ground.

Firstly, find the velocity when it reached the ground. So,

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$v=\sqrt{2gh} \\\\v=\sqrt{2\times 9.8\times 17.3} \\\\v=18.41\ m/s$

It is in negative direction, u = -18.41 m/s

Let a is average acceleration of the ball. Consider, v = and u = -18.41 m/s.

$a=\dfrac{v-u}{t}\\\\a=\dfrac{0-18.41}{24\times 10^{-3}}\\\\a=767.08\ m/s^2$

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