Paper Details

The elbow joint is flexed using the biceps brachii muscle, which remains essentially vertical as the arm moves in the vertical plane. If this muscle is located a distance a from the pivot point A on the humerus, determine the variation of the moment capacity about A if the constant force developed by the muscle is F. Plot these results of M vs. ? for ?60 ? ? ? 80.

Units Used:

kN = 103 N

Given:

a = 16 mm

F = 2.30 kN

? = (?60 … 80)

In a Young?s double-slit experiment, two rays of monochromatic light emerge from the slits and meet at a point on a distant screen, as in Figure (a). The point on the screen where these two rays meet is the eighth-order bright fringe. The difference in the distances that the two rays travel is 4.57 × 10-6 m. What is the wavelength (in nm) of the monochromaticlight?