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Effectus [21]
3 years ago
7

What percent of the world is tropical climates?

Physics
1 answer:
Vadim26 [7]3 years ago
4 0

<span>36% of the Earth's landmass is tropical climates.</span>
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The answer is A.

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a beach ball is left in the bed of a pickup truck. Describe what happens to the ball when the truck accelerates forward
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An ant clings to the outside edge of the tire of an exercise bicycle. When you start pedaling, the ant's speed increases from ze
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Suppose a car travels 108 km at a speed of 30.0 m/s, and uses 1.90 gallons of gasoline. Only 30% of the gasoline goes into usefu
Aleksandr [31]

Answer:

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Explanation:

\eta = Efficiency = 30%

V = Volume of gasoline

E = Energy content of gasoline = 1.3\times 10^8\ J/gal

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v = Velocity

Work done is given by

W=F\times s\\\Rightarrow F=\frac{W}{s}\\\Rightarrow F=\frac{VE\eta}{s}\\\Rightarrow F=\frac{1.9\times 0.3\times 1.3\times 10^8}{108000}\\\Rightarrow F=686.11\ N

The force required to keep the car moving at a constant speed is 686.11 N

Here the force is directly proportional to speed

\\\Rightarrow F=v

\\\Rightarrow \frac{F_1}{v_1}=\frac{F_2}{v_2}\\\Rightarrow F_2=\frac{F_1\times v_2}{v_1}\\\Rightarrow F_2=\frac{686.11\times 28}{30}\\\Rightarrow F_2=640.36\ N

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The gallons that will be used is 1.7733 gallons

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3 years ago
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