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Shtirlitz [24]
3 years ago
10

Michelle recently started selling her invention: A bed that looks like it floats in mid-air. The bed is actually suspended by ma

gnetic forces. Michelle is a(n)
Physics
1 answer:
Tamiku [17]3 years ago
8 0

Answer:

Explanation:

designer

illusionist

engineer

entrepreneur

salesperson

human

inventor

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A 34.0 %-efficient electric power plant produces 800 MW of electric power and discharges waste heat into 20∘C ocean water. Suppo
mojhsa [17]

Answer:

77647

Explanation:

\eta = Efficiency = 34%

Power used in 1 home = 0.02 MW

Total power is

P=\dfrac{800}{\eta}\\\Rightarrow P=\dfrac{800}{0.34}\\\Rightarrow P=2352.94117\ MW

Waste of power

2352.94117-800=1552.94117\ W

Number of homes would be given by

n=\dfrac{1552.94117}{0.02}=77647.0585\ homes

The number of homes that could be heated with the waste heat of this one power plant is 77647

8 0
3 years ago
A student hangs a wood block from a spring. The student pulls the block downwards so the spring is stretched and holds the block
Murrr4er [49]
Kinetic energy because of the wood plank is just still and not moving it’s potential but since it’s asking which one it doesn’t have it doesn’t have kinetic energy cause it’s not moving
6 0
3 years ago
An object travels 20 m in 10s What is its speed?
ella [17]

speed=distance/time

distance=20m

time=10s

speed=?

speed=20×10

speed=200m/s

3 0
3 years ago
The sizes of most of the cells our bodies are about A.1micrometer
Alekssandra [29.7K]

Answer:

1Mm

Explanation:

i think this one. so it is wrong then also dont be angry with me because iam trying to help u

5 0
2 years ago
Read 2 more answers
In which of these situations is convection most likely the main form of heat transfer? A.Warm air from a heater on the first flo
Kitty [74]
The answer is D.An ice cube melts when a person holds it in his hand 
The heat from your body is causing the ice cube to melt

3 0
3 years ago
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