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natima [27]
2 years ago
14

If the ball shown in the figure lands in 1.0 s, about what height was it thrown from? ​

Physics
2 answers:
Scrat [10]2 years ago
6 0

Answer:

5m

Explanation:

Rus_ich [418]2 years ago
4 0

Answer:

Should be 5 m

Explanation:

hope it helps

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The distance between a speaker and a listener is 8.0 m. Determine the frequency of the sound wave if exactly 20 waves are formed
dmitriy555 [2]

The frequency of the wave is 6800 Hz

<u>Explanation:</u>

Given:

Wave number, n = 20

Speed of light, v = 340 m/s

Frequency, f = ?

we know:

wave number = \frac{frequency}{speed of light}

20 = \frac{f}{340 m/s} \\\\f = 20 X 340 s^-^1\\\\f = 6800 Hz

Therefore, the frequency of the wave is 6800 Hz

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3 years ago
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The current in the wires of a circuit is 60 milliamps. If the resistance of the circuit were doubled (with no change in voltage)
anygoal [31]

Answer:30

Explanation:

Current=60 milliamps

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60=(voltage)/(resistance)

Doubling the resistance means multiplying both sides by 1/2

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30=(voltage)/2(resistance)

Therefore the resistance would be 30 milliamp if we double the resistance

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