Select the correct answer. Which statement is true about the electromagnetic spectrum?
ОА.
The visible spectrum includes radio waves, light, and gamma rays.
The colors you can see have the same wavelength.
OB.
OC.
It has a range of visible and invisible forms of radiation.
OD.
The waves travel at the speed of 2.998x109 meters/second.

The material that keeps its new shape after it is stretched is called?

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 =

The items in the following list are all units of matter. which is the smallest unit that retains the properties of the matter? a.) atom b.) compound c.) electron d.) element