Awing component on an aircraft is fabricated from an aluminum alloy that has a plane strain fracture toughness of 26 mpa√m . it has been determined that the fracture results at a stress of 112 mpa when the maximum internal crack length is 8.6 mm. for this same component and alloy, compute the stress level at which fracture will occur for a critical internal crack length of 6.0 mm

Like a key in a lock, the shape of the. must bind with the. of the recieving neuron

If 2 moles of co_2 at 2l and 500k are expanded reversibly to 20l, more work can be obtained from an adiabatic process than from an isothermal process. is the above statement true or false?

Calculate the ratio of h+ ions to oh– ions at a ph = 6. find the concentration of h+ ions to oh– ions listed in table b of your student guide. then divide the h+ concentration by the oh– concentration. record this calculated ratio in table a of your student guide. compare your approximated and calculated ratios of h+ ions to oh– ions at a ph = 6. are they the same? why or why not? record your explanation in table a. what is the concentration of h+ ions at a ph = 6? mol/l what is the concentration of oh– ions at a ph = 6? mol/l what is the ratio of h+ ions to oh– ions at a ph = 6? : 1