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Black_prince [1.1K]
3 years ago
10

A cyclist rode an average speed of 10 miles per hour for 15 miles how long was the ride

Physics
1 answer:
Ainat [17]3 years ago
7 0
I think it's an hour and a half
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To make ice, a freezer that is a reverse Carnot engine extracts 37 kJ as heat at -17°C during each cycle, with coefficient of pe
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a) 6.4 kJ

b) 43.4 kJ

Explanation:

a)

Q_{a} = Heat absorbed = 37 kJ

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Q_{a} = β W

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b)

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3 years ago
For a demonstration, a professor uses a razor blade to cut a thin slit in a piece of aluminum foil. When she shines a laser poin
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width of slit(a)≅ 0.1mm

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recall the formula;

W=(2λL)/a

a=2λL/W

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a=0.0941875mm

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