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stepan [7]
3 years ago
12

How much heat in joules is needed to raise the temperature of 10 grams of water from 25 c to 50 c?

Physics
1 answer:
natali 33 [55]3 years ago
4 0

Answer: 10.5 kJ

Explanation:

In order to be able to solve this problem, you will need to know the value of water's specific heat, which is listed as

c = 4.18 J g ∘ C

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Masteriza [31]

Answer:

b) True.    the force of air drag on him is equal to his weight.

Explanation:

Let us propose the solution of the problem in order to analyze the given statements.

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     fr - w = ma

Where the friction force has some form of type.

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Let's replace

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We can see that the friction force increases as the speed increases

At the equilibrium point

      fr - w = 0

      fr = mg

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For low speeds the quadratic depended is not important, so we can reduce the equation to

     G v = mg

     v = mg / G

This is the terminal speed.

Now let's analyze the claims

a) False is g between the friction force constant

b) True.

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e) False. The friction force is equal to the weight

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3 years ago
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