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Allushta [10]
3 years ago
11

How many words can u type in a min

Chemistry
1 answer:
Cerrena [4.2K]3 years ago
5 0

Answer:

It depends on the person, however it is 40 words per minute, or WPM.

Explanation:

Take a typing test. However, the national average is 40 WPM.

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A piece of an unknown substance weighing 124.0 grams is heated in boiling water to 100.0oc. when the substance is placed in a ca
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The heat cause 300g water temperature increase from 20 to 26 celcius. The heat transferred would be: 300g * (26 °C -20 °C) *4.2 joule/gram °C= 7560J

The unknown substance is added to the water, so its final temperature should be the same as the water. The calculation would be:

7560J= 124g * (100-26)* specific heat

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4 years ago
A 800N mountain climber scales a 160m cliff. How much work is done by the mountain climber?
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Answer:

Work done, W = 128 kJ

Explanation:

Given that,

Weight of a mountain climber, F = 800 N

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Put the values of F and d.

W = 800 N × 160 m

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or

W = 128 kJ

So, 128 kJ of work is done by the mountain climber.

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2 years ago
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\bold \blue{b)B}

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