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SpyIntel [72]
3 years ago
15

Explain why liquid particles at a high pressure would need more energy to change to a gas than liquid particles at a low pressur

e.
Physics
1 answer:
jenyasd209 [6]3 years ago
8 0
Jsjsjjewiqoowodofofocpcco Ossis
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2 years ago
A system of releases 125kJ of heat while 104kJ of work is done in the system. Calcilate the change om imternal energy (in kJ)
artcher [175]

Answer:

DU = 21 KJ

Explanation:

Given the following data;

Quantity of heat = 125 KJ

Work = 104 KJ

To find the change in internal energy;

Mathematically, the change in internal energy of a system is given by the formula;

DU = Q - W

Where;

DU is the change in internal energy.

Q is the quantity of energy.

W is the work done.

Substituting into the formula, we have;

DU = 125 - 104

DU = 21 KJ

4 0
2 years ago
The electric motor of a model train accelerates the train from rest to 0.620 m/s in 21ms. The total mass of the train is 825 g.
Rudiy27

Explanation:

Average power = change in energy / change in time

P = ΔE / Δt

P = (½ mv²) / t

P = (½ (0.825 kg) (0.620 m/s)²) / (0.021 s)

P = 7.55 Watts

7 0
2 years ago
Which of the following statements best describes ergonomics?
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A circular horizontal surface having an area of 1020.5 mm2that is completely immersed in a fluid experiences a uniform force of
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