Calculate the short-circuit current for a photodiode under uniform illumination of light intensity 100 w/cm2 . the light is monochromatic, and the photon energy is larger than eg. assume light is absorbed uniformly through the thickness (not physically correct, but a simplification we will apply nonetheless), and 1 out of 100 incident photons produces an electron/hole pair. the relevant dimensions of the diode are: total length between one ln and one lp from the transition region edge on the p side and n side, respectively, is 2 mm, and the width and height are both 1 cm. the lifetimes for both electrons and holes is 10 μs.

1point) a skydiver weighing 130 lb (including equipment) falls vertically downward from an altitude of 14,000 ft and opens the parachute after 20 s of free fall. assume that the force of air resistance, which is directed opposite to the velocity, is of magnitude 0.85|v|0.85|v| when the parachute is closed and is of magnitude 17|v|17|v| when the parachute is open, where the velocity vv is measured in ft/s. assume that acceleration due to gravity has magnitude 32 ft/s/s; remember that weight is the product of mass and gravitational acceleration. find the speed of the skydiver when the parachute opens. speed is 150.6121788 ft/s find the skydiver's height when the parachute opens. height is 2338.98591 ft find the limiting velocity vlvl after the parachute opens. (think about whether this should be positive or negative.) vl=vl= 7.647 ft/s

10 newton object is placed 3 meters from the fulcrum. at what distance on the other side would you need to place a 15 newton object to balance the lever? show your work!

Determine the maximum r-value of the polar equation r =3+3 cos 0