Which state is lower in energy, the one with its spin component parallel to the field or the one with its spin component antiparallel to the field?

Suppose you use a machine that gives you a mechanical advantage of 2 to achieve an output force of 30newtons what must the input force be

Around faucet handle is part of a(n) a. lever b. screw c. inclined plane d. wheel and axle

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.