What are the bending spring constants for a silicon cantilever with E = 170 GPa, h = 5 µm, w = 2 µm, and L = 100 µm? In real manufacturing, there is likely a dimensional deviation in fabricated device from design values. How much the spring constant change if all dimensions are increased by 5%? How much the spring constant change if all dimensions are decreased by 5%? How much the spring constant change if all dimensions are increased by 200 nm?

Sublimation- which change of state is shown in model

W= fd
where f is an applied force and d is the distance over which it is applied. when a parachuting skydiver is at constant velocity, he is experiencing "terminal velocity", the point at which his acceleration down is canceled out by air resistance. that means that the resisting force of the air is equal to his weight, but in the opposite direction. with this, we can solve for the work done by the force.
w = fd
w = (92.0)(9.81 m/s^2) (325)
w= 2.93 x 10^5 j
the value for work in this case is positive because it is pushing up on the skydiver, who has a downward force of gravity.
therefore the answer is 2.93 x 10^5 j

Answer sample (c); // would be best because the percentage of the energy in an incident wave that remains in a reflected wave from this material is the smallest;