A wooden beam 10 meters long has a uniformly distributed mass of 200 kg and is supported by two scales, one at the extreme left end and the second at the extreme right end. An additional 50 kg weight is placed on the beam 2 meters from the left end. What does the scale on the left end read for the weight supported

1. a net force of 100 newton’s is applied to a wagon for 5 seconds. this causes the wagon to undergo a change in momentum of

Consider the growth of a 20-nm-diameter silicon nanowire onto a silicon wafer. the temperature of the wafer surface is maintained at 2400 k. assume the thermal conductivity of the silicon nanowire is 20 wm-1k-1 and all its surfaces including the tip are subjected to convection heat transfer with the coefficient h = 1×105 wm-2k-1 and t∞ = 8000 k. when the nanowire grows to l = 300 nm, what is the temperature of the nanowire tip (t (x =

Awave has a wavelength of 7 mm and a frequency of 19 hertz. what is its speed?