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vitfil [10]
3 years ago
8

A rigid tank of air is cooled (temperature decreased). The volume has to remain constant because it is a rigid tank. The air pre

ssure in the rigid tank
A. Increases B. Decreases C. Stays the same
Physics
2 answers:
Romashka-Z-Leto [24]3 years ago
5 0

The air pressure in the rigid tank Decreases.

<u>Explanation:</u>

A rigid tank is said to be a region where volume is always considered as a constant. During the process of cooling the rigid tank where the temperature is said to be decreased, the effect of air pressure in the tank also decreases.

Because, PV = RT, where P is the pressure, T is temperature, R is constant, V is the volume. Hence pressure is directly proportional to temperature.

alekssr [168]3 years ago
4 0
If the temperature in the tank is decreased this would imply that the kinetic energy of molecule decreases because of the ideal gas law:
PV= nRT (Since Pressure is directly proportional to Temperature).
So the answer is B.The air pressure in the rigid tank decreases.
Hope this helps you.
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An airplane is being pushed West by its engines with a force of 350 N as it starts to take off the runway at the Atlanta airport
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Answer:

option C

Explanation:

given,

Force by the engine on plane in West direction = 350 N

Frictional force on the runway = 100 N in east

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consider west to be positive and east be negative.

when airplane will be moving there will be frictional as well as wind resistance will be acting in opposite direction of airplane

Net force = 350 N - 100 N - 100 N

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as our answer comes out to be positive so the airplane will be moving in West

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Usimov [2.4K]

Answer:

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7 0
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A soap bubble, when illuminated at normal incidence with light of 463 nm, appears to be especially reflective. If the index of r
Sedbober [7]

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