In a series circuit, (a) can travel along only one path. (b) the path is broken, the current can continue to flow. (c) is more than one path that electrons can follow. (d) if one light bulb burns out, the other light bulbs will still light up.

The safe load, l, of a wooden beam of width w, height h, and length l, supported at both ends, varies directly as the product of the width and the square of the height, and inversely as the length. a wooden beam 4 inches wide, 9 inches high, and 240 inches long can hold a load of 6810 pounds. what load would a beam 3 inches wide, 8 inches high, and 144 inches long, of the same material, support? (round off your answer to the nearest integer.)