3 years ago

You filled a balloon that has a volume of 45 cm3 with helium gas. What is the volume of the helium gas?

Engineering

1 answer:

dangina [55]3 years ago

6 0

Answer:

The volume of the helium gas is 45 cm³.

Explanation:

The volume of the helium gas can be determined from kinetic theory of gases, which states that gas molecules do not have a fixed volume, rather they assume the volume of their container.

Therefore, if the volume of the balloon is 45 cm³, which is also the container of the helium gas, then the volume of the helium gas is 45 cm³.

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An o ring intended for use in a hydraulic system using MIL-H-5606 (mineral base) fluid will be marked with

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An o ring intended for use in a hydraulic system using MIL-H-5606 (mineral base) fluid will be marked with a blue stripe or dot.

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2 years ago

Knowing that v = –8 m/s when t = 0 and v = 8 m/s when t = 2 s, determine the constant k. (Round the final answer to the nearest

docker41 [41]

Answer:

a)We know that acceleration a=dv/dt

So dv/dt=kt^2

dv=kt^2dt

Integrating we get

v(t)=kt^3/3+C

Puttin t=0

-8=C

Putting t=2

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k=48/8

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3 years ago

What is the smallest variable type I can use to represent the number 27?

oksano4ka [1.4K]

Answer:3

Explanation:

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3 years ago

A disk of radius 2.1 cm has a surface charge density of 5.6 µC/m2 on its upper face. What is the magnitude of the electric field

Assoli18 [71]

Answer:

$=6.3*10^3 N/C$

Explanation:

solution:

from this below equation (1)

$E=$ σ/2εo $(1-\frac{z}{\sqrt{z^2-R^2} } )$ ...........(1)

we obtain:

$=5.6*10^-6 \frac{c}{m^2} /2(8.85*10^-12\frac{c^2}{N.m^2} ).(1-\frac{9.5 cm}{\sqrt{9.5^2-2.1^2} } )$

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8 0

3 years ago

The voltage and current at the terminals of the circuit element in Fig. 1.5 are zero fort < 0. Fort 2 0 they areV =75 ~75e-10

masya89 [10]

Answer:

maximum value of the power delivered to the circuit =3.75W

energy delivered to the element = 3750e^{ -IOOOt} - 7000e ^{-2OOOt} -3750

Explanation:

V =75 - 75e-1000t V

l = 50e -IOOOt mA

power = IV = 50 * 10^-3 e -IOOOt * (75 - 75e-1000t)

=50 * 10^-3 e -IOOOt *75 (1 - e-1000t)

maximum value of the power delivered to the circuit =3.75W

the total energy delivered to the element = $\int\limits^t_0 {3.75(e^{ -IOOOt} - e ^{-2OOOt} )} , dx \\\\$

$3750e^{ -IOOOt} - 7000e ^{-2OOOt} -3750$

5 0

3 years ago