A structural component is fabricated from an alloy that has a plane-strain fracture toughness of 50 MPa√m. It has been determined that this component fails at a stress of 225 MPa when the maximum length of a surface crack is 1.2 mm. What is the maximum allowable internal crack length (in mm) without fracture for this same component exposed to a stress of 225 MPa and made from another alloy that has a plane strain fracture toughness of 30 MPa√m ?

when atmosphere interacts with biosphere they focuses on on the sources and sinks of green house gases (ghgs) air pollutants, particular matters, water and energy between the earth's surface and the atmosphere. the biosphere affects the climate. the atmosphere and biosphere are in constant interaction with each other, and all living things rely on gases in the atmosphere for life. organisms such as animals take in oxygen gas form the atmosphere to use in every cell of their body for smooth functioning of daily routine exercises.

b) nuclear ive learned that in a pedtrodic table

the pseudoscience are like beliefs, theories, or like practices that are considered scientific