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Basile [38]
3 years ago
6

At constant pressure, the volume of a fixed mass of gas and its kelvin temperature are said to be

Physics
2 answers:
bogdanovich [222]3 years ago
5 0
A. directly related
I got it right on the test
juin [17]3 years ago
3 0
They are said to be directly related.

a) directly related.

This is Charles' Law.
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A system had 150 kj of work done on it and its internal energy increased by 60 kj. How much energy did the system gain or lose a
mina [271]

Answer:

The system loses 90 kJ of heat

Explanation:

We can answer the question by using the 1st law of thermodynamics, which states that:

\Delta U=Q-W

where

\Delta U is the change in internal energy of the system

Q is the heat absorbed by the system (positive if absorbed, negative if released by the system)

W is the work done by the system (positive if done by the system, negative if done by the surrounding on the system)

In this problem, we have:

W=-150 kJ is the work done (negative, because it is done by the surrounding on the system)

\Delta U=+60 kJ is the increase in internal energy

Using the equation above, we can find Q, the heat absorbed/released by the system:

Q=\Delta U+W=+60 kJ+(-150 kJ)=-90 kJ

And the negative sign means that the system has lost this heat.

8 0
3 years ago
The shifting of the observed wavelength of light due to the motion of the source toward or away from the observer is called the
alexdok [17]

Answer:

doppler effect

Explanation:

When the relative motion of two bodies results in the wavelength becoming shorter this means that the bodies are getting closer. This is known as blue shift.

When the relative motion of two bodies results in the wavelength becoming longer this means that the bodies are getting farther. This is known as red shift.

Collectively this phenomenon is known as the Doppler effect.

7 0
3 years ago
3. Force = _____ x _____?
harkovskaia [24]

Answer:

Explanation:

Force = mass * acceleration.

8 0
3 years ago
How do you work out instantaneous speed?
Alik [6]
To calculate instantaneous speed, we need to divide part of the total distance traveled by time. However, we don't want to use the distance of the entire trip, because that will give us average speed.
7 0
3 years ago
7th grade science!! Help ASAP!!
N76 [4]

Answer:

Bladder: A temporary storage place for urine

Ureter: Tube that carries urine from the kidneys from the bladder

Nephron: functional unit of the kidney.

Urethra: Exit way for urine out of the body.

Kidney: filters waste from the blood.

I hope this helps! Have an amazing day!

7 0
3 years ago
Read 2 more answers
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