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3 years ago

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