Find out the wavelength of the ultrasonic wave

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Reference no: EM1345855

Q. A drunk driver in a 1600kg car plows into a 1500kg parked car with its brake set. Police measurements show that the two cars skid together a distance of 19m before stopping. If the effective coefficient of friction is 0.78, how fast was the drunk going just before the collision?

Q. 1. find the wavelength of the ultrasonic wave emitted by a bat if it has a frquency of 4.0x10^4Hz.
2. radio station KSON in San Diego broadcasts at both 1240kHz(AM) and 97.3MHz(FM). a)Which of these signals, AM or FM, has the loner wavelength?

Reference no: EM1345855

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