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Margaret [11]
3 years ago
9

Why does it take a large truck longer to stop than a compact car, even though both are traveling at the same velocity?

Chemistry
2 answers:
BartSMP [9]3 years ago
4 0
It is heavier and requires more of all-time gas,time,power....
Rashid [163]3 years ago
3 0
The trucks weight gets pulled forward by gravity more than the small, less heavy car.
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14. A child's lungs can hold 2.20 L. How many grams of air do her lungs hold at a pressure of
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Answer:

Explanation:

Use the gas equation: PV=nRT

P=pressure

V=Volume

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T=temperature

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Sub in all numbers to calculate the mol

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n=102 x 2.2/8.31 x 310 =0.087 mol

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Multiply 29 moles with 0.087 to find the grams

29*0.087=2.523, which to one d.p is 2.5 g

Hence, the child's lung will hold 2.5 g of air.

Hope this helps you  :)

Have a nice day!!

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