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topjm [15]
3 years ago
10

explain the sequence of events that happens when this fluid cools down. be sure to focus on what happen to the molecules and to

the fluid in general . five event should be included in your answer
Physics
1 answer:
Paraphin [41]3 years ago
4 0

Answer:

Check below for the explanations required

Explanation:

The following processes/events take place in the cooling of a fluid.

  • A reduction in the kinetic energy of the molecules of the fluid
  • The molecular speed reduces ( i.e.there will be a reduction in the speed at which the molecules move)
  • The cohesive force between the molecules will increase ( i.e the molecules will no longer be drifted apart, they will now move closer to each other
  • The temperature of the fluid reduces as it cools down
  • There will be an increase in density

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elena-s [515]

Answer:

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Explanation:

7 0
3 years ago
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Calculate the true mass (in vacuum) of a piece of aluminum whose apparent mass is 4.5000 kgkg when weighed in air. The density o
spin [16.1K]

Answer:

The true weight of the aluminium is m_{alu} = 4.5021 kg

Explanation:

Given data

m_{app} = 4.5 kg

\rho_{air} = 1.29 \frac{kg}{m^{3} }

\rho_{al} = 2.7× 10^{3} \frac{kg}{m^{3} }

The true mass of the aluminium is given by

m_{alu} = \frac{\rho_{alu}m_{app}}{\rho_{alu} -\rho_{air} }

Put all the values in above equation we get

m_{alu} = \frac{(2700)(4.5)}{2700-1.29}

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Therefore the true weight of the aluminium is m_{alu} = 4.5021 kg

6 0
3 years ago
Your code returns a number of 99.123456789 +0.00455679 for your calculation. How should you report it in your lab write-up?
Aneli [31]

Answer: Your code returns a number of 99.123456789 +0.00455679

Ok, you must see where the error starts to affect your number.

In this case, is in the third decimal.

So you will write 99.123 +- 0.004 da da da.

But you must round your results. In the number you can see that after the 3 comes a 4, so the 3 stays as it is.

in the error, after the 4 comes a 5, so it rounds up.

So the final presentation will be 99.123 +- 0.005

you are discarding all the other decimals because the error "domains" them.

6 0
3 years ago
How do you think overpumping groudwater is related to the formation of sinkholes?
vladimir2022 [97]
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The moon orbits the earth once every 27 days at a distance of 384400 km. The international space station orbits the earth at an
Leno4ka [110]

Answer:

ive never done this befor but i think its 36 times aroud earth a day

Explanation:

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1440/40=36

7 0
2 years ago
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