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Alex777 [14]
2 years ago
8

What causes global winds?

Physics
1 answer:
11111nata11111 [884]2 years ago
8 0
A: Temperature difference between air over land and air over water
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The human heart is a powerful and extremely reliable pump. Each day it takes in and discharges about 7500 L of blood. Assume tha
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(a) 1.257 x 10^5 J

(b) 1.456 Watt

Explanation:

Volume of blood, v = 7500 L = 7.5 m^3

Height, h = 1.63 m

density of blood, d = 1.05 x 10^3 kg/m^3

(a) work done = m x g x h

W = v x d x g x h = 7.5 x 1.05 x 1000 x 9.8 x 1.63 = 1.257 x 10^5 J

(b) time = 1 day = 24 x 60 x 60 s = 86400 seconds

Power = Work / time = 1.257 x 10^5 / 86400 = 1.456 Watt

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3 years ago
If for every action force an equal and opposite reaction force exlsts, how can anything ever be accelerated?
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Answer:

B

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The net force is the force between action and reaction and when this forces are not the same an acceleration is spurred.

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It takes 56.5 kilojoules of energy to raise the temperature of 150 milliliters of water from 5°C to 95°C. If you
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