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Thepotemich [5.8K]
3 years ago
6

A weather balloon is inflated with 0.80 m3 of helium (He) at ground level (pressure is 1.0 atm). The balloon is released and ris

es into the air. What is the atmospheric pressure when the gas in the balloon expands to a volume of 3.32 m3?
Physics
1 answer:
sleet_krkn [62]3 years ago
7 0

Answer: 0.24 atm

Explanation:

To calculate the new pressure, we use the equation given by Boyle's law. This law states that pressure is directly proportional to the volume of the gas at constant temperature.  

The equation given by this law is:

P_1V_1=P_2V_2

where,

P_1 = initial pressure of gas = 1.0 atm

V_1 =  initial volume of gas = 0.80 m^3

P_2 = final pressure of gas= ?

V_2 = final volume of gas = 3.32m^3

Putting values in above equation, we get:

1.0\times 0.80m^3=P_2\times 3.32m^3

P_2=0.24atm

Thus the atmospheric pressure of the gas is 0.24 atm

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3 years ago
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A hollow conductor is positively charged. Asmall uncharged metal ball is lowered by a silk thread through asmall opening in the
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Answer:

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So option (c) is correct.

8 0
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A roller coaster weighing 2000 kg is lifted to a height of 28 m within 30 seconds with a kind of elevator.Calculate how many kil
Vladimir [108]

Answer:

Explanation:

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P = Work/time to do work and the equation for work is

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W = 2000(9.8)(28) so

W = 550,000 N*m

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2 years ago
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Calculate the force which will produce an extension of 0.30mm in a steel wire with a length of 4.0m and a cross section area of
Anna [14]

Given data:

* The extension of the steel wire is 0.3 mm.

* The length of the wire is 4 m.

* The area of cross section of wire is,

A=2\times10^{-6}m^2

* The young modulus of the steel is,

Y=2.1\times10^{11}\text{ Pa}

Solution:

The young modulus of the steel in terms of the force and extension is,

Y=\frac{F\times l}{A\times dl}

where F is the force acting on the steel wire,, l is the original length of the wire, dl is the extension of the wire, and A is the area,

Substituting the known values,

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7 0
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