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Zina [86]
3 years ago
7

Substance X is placed in a container with substance Y.

Physics
1 answer:
balandron [24]3 years ago
4 0

Answer:

Substance X will rise due to convection.

Explanation:

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Conduction. Any material that easily allows heat to move through it. Vacuum. A region of space that contains no matter. Solid.
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2 years ago
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Compare the momentum of a 6,300-kg elephant walking 0.11 m/s and a 50-kg dolphin swimming 10.4 m/s. your answer
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3 years ago
Waves transfer energy by a series of
Elina [12.6K]

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Explanation:

8 0
3 years ago
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What is the average power developed by a motor as it lifts a 400.-kilogram mass at constant speed through a vertical distance of
Tomtit [17]

Answer:

The average power developed by a motor is 4905 Watts.

Explanation:

The average power is given by:

P = \frac{W}{t}

Where:

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First, let's find the work:

W = F*d

Where:

F: is the force

d: is the displacement = 10.0 m

The force is in the vertical motion, and since the movement of the mass is at constant speed the force is:

F = mg = 400 kg*9.81 m/s^{2} = 3924 N

Hence, the average power is:

P = \frac{F*d}{t} = \frac{3924 N*10.0 m}{8.0 s} = 4905 J/s = 4905 W                    

Therefore, the average power developed by a motor is 4905 Watts.

I hope it helps you!                  

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