Consider a copper-based material containing precipitates with an average spacing of 500 nm. The contribution of these precipitates to the yield strength of the alloy is 200 MPa. If the precipitate spacing were decreased to 200 nm, what would be the new contribution of the precipitates to the yield strength of the alloy?

Awheel rotates without friction about a stationary horizontal axis at the center of the wheel. a constant tangential force equal to 82.0 n is applied to the rim of the wheel. the wheel has radius 0.150 m . starting from rest, the wheel has an angular speed of 12.8 rev/s after 3.88 s. what is the moment of inertia of the wheel?

Coal contains energy. a. light b. kinetic c. chemical d. mechanical

When you hold a rectangular object, how does the area of the side that is resting on your hand affect the pressure and the force that the object exerts?