alandrabell9234
13.01.2022 •
Physics
A young child opens the refrigerator door and stands there for several minutes, looking for something to eat. The child’s parent tells the child to shut the refrigerator door because the child is letting the cold air out. What is a more exact explanation of what is occurring with the air when the refrigerator door is open?
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Ответ:
power generated = 117.72 MW
Explanation:
given data
flow rate of river = 240 m³/s
height above the surface lake = 50m
solution
we get power generated that is express as
power generated = distance × acceleration due to gravity × elevation head × density of water 1
power generated = 240 × 9.81 × 50 × 1000
power generated = 117.72 MW