2. Bone is an anisotropic tissue that supports higher loads in the longitudinal direction, due to the high level of organization of collagen and hydroxyapatite. The elastic modulus of a femur was found to be 40 GPa when measured in the longitudinal direction, and can be modeled as a composite with continuous oriented fibers. The volume fraction of the hydroxyapatite inclusions is 50%. The moduli of the inclusions and matrix are 79 GPa and 1 GPa respectively. The femur has a radius of 3 cm. Determine the necessary radius of bone with entirely isotropic mechanical properties (i. e. inclusions are random particles now). In both cases, bone should not exceed a strain of 1%

1. which one of the following would be an example of a supply-side market failure? a. a gas station is slowly leaking diesel fuel from its underground tanks, and after the leak is discovered, the business immediately cleans up the pollution at its own expense. b. a gas station is slowly leaking diesel fuel from its underground tanks, but the state uses taxpayer money to clean up the pollution rather than requiring the business to pay. c. your business wants to attract repeat customers by putting on a customer-appreciation picnic at a public park, but you decide not to because you couldn't prevent noncustomers from consuming the food and entertainment you provided. d. everyone rushes to the local retail outlet at midnight on the day of the release of a new video game console, and the store runs out before everyone is able to buy one.