Someone in a car going past you at the
speed of 46 m/s drops a small rock from a
height of 2.2 m.
how far from the point of the drop will the
rock hit the ground? the acceleration due to
gravity is 9.8 m/s
2
.

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 =

Abowling ball rolling down the lane toward the pins has gravitational potential energy. a. no b. a lot of c. a little

Anumber of conditions are required for a population to be in hardy-weinberg equilibrium. which of the following are correct descriptions of the conditions that must be met? check all that apply. a. no mutations b. random mating c. small population d. migration or gene flow e. occurrence of mutations f. no natural selection