Question 2A copper cable can withstand a tensile stress of 7 x 10-9 Nm-2. If such a cable is used to support a mass of 800g, what is the minimum diameter the cable can have? A.3.78 x 10-5mB.1.88 x 10-5mC.1.19 x 10-3mD.6.03 x 10-4mObjective Show full explanation