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The weights of bags filled by a machine are normally distributed with a standard deviation of 0.05 kilograms and a mean that can be set by the operator. at what level should the mean weight be set if it required that only 1% of the bags weigh less than 9.5 kilograms? round the answer to 2 decimal places.

Awave with a frequency of 500 hz is traveling at a speed of 100 m/s.what is the wavelength?

Awave has a wavelength of 7 mm and a frequency of 19 hertz. what is its speed?