Ascientist designs an experiment to test how the intensity, or strength, of light affects plant growth. which of the following should be consistent among the plants he test? mark all that apply.
a. the quantity of water given to the plantsb. the type of soil used for potting the plantsc. the type of plant used for the testd. the length of time the plants are exposed to light

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 =