Figure shows four vectors A⃗ , B⃗⃗ , C⃗ , and D⃗⃗ with magnitude A = 5, B = 7, C = 9 and D = 11. Find out the angle between the
vectors A⃗ × B⃗⃗ and C⃗ × 2 D⃗⃗

Which best represents the law of conservation of mass ?

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 =

In the united states, tornadoes generally occur because of the freezing of ocean water underwater earthquakes meeting of cool and warm air masses shifting of warm and cool ocean currents