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Vedmedyk [2.9K]
2 years ago
11

Question 4 of 10

Physics
2 answers:
Mars2501 [29]2 years ago
8 0

Answer:

The answer is C.Cables transmit infrared waves over longer distances.

Explanation:

I took AP EX quiz.

avanturin [10]2 years ago
5 0

Answer:

C. Cables transmit infrared waves over longer distances.

Explanation:

A.pex

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According to the law of conservation of matter,the number of ______ is not changed by a chemical reaction
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What is 3600Hz has in rpm?​
Setler [38]

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Explanation:

N=Rotor Speed in Revolution per minute(rpm)

for P=4 and N=3600, f comes out to be 120 Hz.

So frequency of voltage produced is 120 Hz. But this is not practical. Generally 4-Pole generator has N=1500rpm(for 50 Hz) or 1800rpm for 60 Hz. Two pole generator can have N=3600rpm(f=60Hz).

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8 0
3 years ago
A gry is an old English measure for length, defined as 1/10 of a line, where line is another old English measure for length, def
Valentin [98]

Answer:

0.2448 point²

Explanation:

1 gry = 1/10 line

1 line = 1/12 inch

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=> 1 inch = 72 points

Therefore,

120 gry = 72 points

=> 1 gry = 3/5 point

Therefore,

1 gry² = (3/5)² point²

1 gry² = 9/25 point²

This means that 0.68 gry² will be:

0.68 gry² = 0.68 * 9/25 point²

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6 0
3 years ago
On the coordinate plane below, draw the vector that goes from (0,0) to (2,3)
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I think it is D

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