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Verizon [17]
3 years ago
8

You can determine the index of refraction of a substance by measuring its critical angle for total internal reflection. True or

False
Physics
1 answer:
Serggg [28]3 years ago
6 0

Answer:

True. Hope you have a good day, internet stranger. :)

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What important discovery was made by edmond halley and alexis clairaut, using newton's ideas of mathematics and gravity?
Semmy [17]
They were able to find the orbit of a comet and predict the year of its return.
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2 years ago
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A certain heat engine does 30.2 kJ of work and dissipates 9.14 kJ of waste heat in a cyclical process.
valina [46]

Answer:

a) H_{in}=39.34 kJ

b) Efficiency=76.77%

Explanation:

a)

In order to solve this problem, we can use the following formula:

H_{in}=H_{out}+W

the problem provides us with all the necessary information so we can directly use the formula:

H_{in}=9.14kJ+30.2kJ

H_{in}=39.34 kJ

b) In order to find the efficiency, we can use the following formula:

Efficiency=\frac{W}{H_{in}}*100\%

so we get:

Efficiency=\frac{30.2kJ}{39.34kJ}*100\%

Efficiency=76.77%

4 0
2 years ago
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All of the above. They all right
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3 years ago
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LiRa [457]

Answer:

Explanation:

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The graph shows two runners participating in a race.
Olin [163]

Answer:

'Daniela had a 5-meter head start, and Leonard caught up to her at 25 meters.'

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