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saul85 [17]
4 years ago
8

The air in a hot-air balloon at 757 torr is heated from 17.0°c to 36.0°c. assuming that the moles of air and the pressure remain

constant, what is the density of the air at each temperature? (the average molar mass of air is 29.0 g/mol.)
Physics
1 answer:
evablogger [386]4 years ago
8 0
Pv= nRT; n/V = p/rt; g/liter = moles/liters * 29.0g/mole
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Acceleration can be found using one of the following suvat equations:

v=u+at\\s=ut+\frac{1}{2}at^2\\s=vt-\frac{1}{2}at^2\\v^2-u^2=2as

Explanation:

The acceleration of an object is defined as the rate of change of velocity of the object:

a=\frac{v-u}{t}

where

v is the final velocity

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There are several equations used to find the acceleration of an object moving in a straight line (they are usually called suvat equation). Depending on which quantities are given in the problem, you can use one of the following equations:

v=u+at\\s=ut+\frac{1}{2}at^2\\s=vt-\frac{1}{2}at^2\\v^2-u^2=2as

where

a is the acceleration

s is the distance covered

t is the time

u is the initial velocity

v is the final velocity

Learn more about acceleration and suvat equations:

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