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Lina20 [59]
3 years ago
7

Two stereo speakers mounted 4.52 m apart on a wall emit identical in-phase sound waves. You are standing at the opposite wall of

the room at a point directly between the two speakers. You walk 2.11 m parallel to the wall, to a location where you first notice that the sound intensity drops to zero.
If the wall along which you are walking is 10.7 m from the wall with the speakers, what is the wavelength of the sound waves?


a) 2.1 m


b) 2.9 m


c) 0.9 m


d) 1.7 m
Physics
1 answer:
Delicious77 [7]3 years ago
4 0
The answer is option c) 0.9 m
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Let y_0 be the height of the building and thus the initial height of the ball. The ball's altitude at time t is given by

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3 0
2 years ago
A spearfisher stands in shallow water and sees a fish a few feet in front of her. She throws her spear directly toward the posit
DENIUS [597]

Answer:

the spear will end up above the fish relative to the actual position of the fish.

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Acceleration is zero if
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3 years ago
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