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Tema [17]
3 years ago
12

9. The acceleration due to gravity on the

Physics
1 answer:
laiz [17]3 years ago
6 0
W=mg
W=75(1.6)
W=120N
a. 120N
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If earth had no atmosphere, would a falling object ever reach terminal velocity?
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A loudspeaker located in air generates sound waves of frequency 1,000 Hz. Some of these sound waves enter a pool of water, where
prisoha [69]

Answer:

1.4 m

Explanation:

v = Speed of sound in water = 1400 m/s

f = Frequency of sound = 1000 Hz

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v=f\lambda\\\Rightarrow \lambda=\dfrac{v}{f}\\\Rightarrow \lambda=\dfrac{1400}{1000}\\\Rightarrow \lambda=1.4\ m

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