A block leaves a frictionless inclined surface horizontally after dropping off by a height h. Find the horizontal distance d where it will land on the floor in terms of h, h, and g.

How does the space charge width change with forward and reverse bias? also, calculate the space charge width for a reverse bias of 4v on a silicon pn junction at t = 300k and doping concentrations of na = 5x1015cm-3 , nd = 5x 1016 cm-3 .

50 g of ice at 0°c is dropped in a beaker containing 100 g of water at 0°c. what will be the contents of the beaker after 5 hours? assume that the room temperature is 0°c.

In the first law of thermodynamics, triangle e=q-w, what does q stand for