Consider a human femur of length L = 448 mm. Model the bone as a hollow cylinder, with inner radius Ra = 4.87 mm and outer radius Rb = 14.61 mm. If a 70 kg person's weight is supported by one leg, calculate the stress on the femur; express your answer as a percentage of the UCS, where the UCS of a bone under compression is 162 MPa. Ignore the weight of the leg and round your answer to the second decimal place. HINT: To express as a percentage of the UCS multiply the stress by 100/UCS. Do not enter any units as they will cancel out. Your