1.A thin strip of rubber has an unstretched length of 15 in. If it is stretched around a pipe having an outer diameter of 5 in., determine the average normal strain in the strip.
2.An air-filled rubber ball has a diameter of 6 in. If the air pressure within it is increased until the ball’s diameter becomes 7 in., determine the average normal strain in the rubber.
3.A spherical tank is being designed to hold 10 moles of Methane Gas at a pressure of 2 bar and a temperature of 70 degrees F. What diameter spherical tank should be used?