What does sound need to travel?

How many neutrons does element x have if it’s stormy umber is 33 and it’s mass number is 95?

If an electric circuit is not grounded it is best to reach out and touch it to provide the ground a.true or b.false

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.