A plane is travelling at 442 m/s in a section of the atmosphere where the speed of sound is 310 m/s. What is the plane's Mach number? Round to three decimal places. D 0 Question 31 :J. 2 pts E) 1 0 Details How much electrical resistance does a particular metal offer if the electricity goes through a cross section of the material with area 0.011 m2 for 0.075 m and the resistivity of the material is 8.06 D - m ? Round your answer to 2 decimal places. R: I: unit