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CaHeK987 [17]
3 years ago
8

When you blow up a balloon, what happens to the volume of air inside the balloon ?

Physics
1 answer:
shutvik [7]3 years ago
3 0
<span>If the balloon is closed then both volume and pressure will increase when the gas inside is heated.</span>
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Argon in the amount of 1.5 kg fills a 0.04-m3 piston cylinder device at 550 kPa. The piston is now moved by changing the weights
Arlecino [84]

Answer:

               275 kPa

Explanation:

             mass of the gas=m=1.5 kg

             initial volume if the gas=V₁=0.04 m³

             initial pressure of the gas= P₁=550 kPa

as the condition is given final volume is double the initial volume

             V₂=final volume

             V₂=2 V₁

As the temperature is constant

             T₁=T₂=T

\frac{P1V1}{T1}=\frac{P2 V2}{T2}

putting the values in the equation.

\frac{P1V1}{T1}=\frac{P2 *2V1}{T2}

P₂=\frac{P1}{2}

P₂=\frac{550}{2}

P₂=275 kPa

So the final pressure of the gas is 275 kPa.

           

3 0
4 years ago
Group one on the periodic table shares which characteristics.?
Dmitry_Shevchenko [17]
Group one on the periodic table, also known as the alkali metals, all:
- form ions with a charge of +1
- display similar extreme chemical behaviour
- have typical metallic properties
- are far too reactive to be found naturally in their pure forms
4 0
3 years ago
A 0.270 m radius, 510-turn coil is rotated one-fourth of a revolution in 4.17 ms, originally having its plane perpendicular to a
vlada-n [284]

Answer:

0.35701 T

Explanation:

B_i = Initial magnetic field

B_f = Final magnetic field

\phi = Magnetic flux

t = Time taken = 4.17 ms

N = Number of turns = 510

\epsilon = Induced emf = 10000 V

r = Radius = 0.27 m

A = Area = \pi r^2

Induced emf is given by

\epsilon=-N\frac{d\phi}{dt}\\\Rightarrow \epsilon=-N\frac{B_fAcos90-B_iAcos0}{dt}\\\Rightarrow \epsilon=N\frac{B_iA}{dt}\\\Rightarrow B_i=\frac{\epsilon dt}{NA}\\\Rightarrow B_i=\frac{10000 \times 4.17\times 10^{-3}}{510\times \pi 0.27^2}\\\Rightarrow B_i=0.35701\ T

The magnetic field strength needed is 0.35701 T

4 0
4 years ago
What’s is the relationship between energy and motion ?
LekaFEV [45]
Motion energy is the sum of potential and kinetic energy in an object that is used to do work.
5 0
3 years ago
Sally is concerned about the X-ray images her dentist plans to take of her teeth. She has read that X-rays can cause tissue effe
taurus [48]

Answer:

The dentist uses X-ray radiography, which takes too short a time to cause those problems.

Explanation:

I took the test on Edg

6 0
4 years ago
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