When all three bulbs are turned on at once, the bulbs flicker, but then the fuse blows and all the lights go out. This is because during the brief period of "flickering," the current in the main line was 1.2 amps + 1.2 amps + 1.2 amps = 3.6 amps. The 3.6-amp current melts the wire in the 3-amp fuse.

Apiling for a high-rise building is pushed by two bulldozers at exactly the same time. one bulldozer exerts a force of 1250 pounds in a westerly direction. the other bulldozer pushes the piling with a force of 2650 pounds in a northerly direction. what is the direction of the resulting force upon the piling, to the nearest degree? a. 65 n of w b. 25 n of w c. 45 n of w d. 35 n of w