An unknown material in the shape of a cylinder with a length of 3.0 m and a diameter of 0.02 m is connected to a constant supply of potential difference equal to 20.0 V. An ammeter measures current through the material and reads a value of 23.0 A at 30C and 19.6A at 100 C. Ignore any changes in volume of the material as a function of increased temperature. What is the resistivity (p) of the material at the reference temperature of 30 C? Give the answer as 10-5*m (i.e. if P is 6.2 10-50x m then enter 6.2 as the answer) What is the temperature coefficient of resistivity (a) at that temperature? Give the answer in units of C-1