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Q. A certain loudspeaker has a diameter of 43cm. At what frequency would the wavelength of the sound it emits in air be equal to its diameter? Assume 340m/s as the speed of sound.

Q. A car is traveling at 29m/s when the driver spots a large pothole in the road the distance 37 m ahead. She immediately applies her brakes. If her acceleration is -6.60m/s2, does she manage to stop before reaching pothole?

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