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Kipish [7]
3 years ago
5

If car is going at a speed of 80 km/h how far will it travel in two hours

Physics
2 answers:
bogdanovich [222]3 years ago
7 0

Answer: 160 km

Explanation:

Brut [27]3 years ago
4 0
I believe the answer would be 160 km
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Which of the following best represents an isolated system?
saul85 [17]

Answer:

D.Outer space is answer

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3 years ago
Heat in the amount of 100 kJ is transferred directly from a hot reservoir at 1320 K to a cold reservoir at 600 K. Calculate the
Zinaida [17]

Answer:0.0909 kJ/K

Explanation:

Given

Temperature of hot Reservoir T_h=1320 K

Temperature of cold Reservoir T_l=600 K

Heat of 100 kJ is transferred form hot reservoir to cold reservoir

Hot Reservoir is Rejecting heat therefore Q_1=-100 kJ

Heat is added to Reservoir therefore Q_2=100 kJ

Entropy change for system

\Delta s=\frac{Q_1}{T_1}+\frac{Q_2}{T_2}

\Delta s=\frac{-100}{1320}+\frac{100}{600}

\Delta s=-0.0757+0.1666=0.0909 kJ/K

As entropy change is Positive therefore entropy Principle is satisfied

         

4 0
3 years ago
An airplane flies 2500 miles east in 245 seconds what is the velocity of the plane?
forsale [732]

Speed = (distance) / (time)

Speed = (

Velocity = speed, and its direction

The velocity of the plane is 10.2 miles per second East.

(about 48 times the speed of sound)

8 0
3 years ago
Which type of energy is released when a bond between atoms is broken
Murrr4er [49]

Answer: gases

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dont use this this is a bad explanation

4 0
3 years ago
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sergiy2304 [10]
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7 0
3 years ago
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