4.
a 40 kg child and a 30 kg child want to balance themselves on a 4 meter, 50
kilogramn see-saw. where should the fulcrum be placed?

The cerebellum controls? thirst sensations sleep-wake cycles hand-eye coordination heart rate and pulse

Which composition of water moves to begin a deepwater current?

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 =