Calculate the current flowing through a copper wire if the wire length is 100 m and the radius is 0.25 mm, with the wire endings connected to a 12 Volts battery. Copper density = rho copper = 1.72x10-8 Ωm

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.