When glass is formed, which of these takes place first?
a) the sand turns to liquid.
b...
Physics, 08.01.2020 11:31, bbrogle4070
When glass is formed, which of these takes place first?
a) the sand turns to liquid.
b) the molecules become hard.
c) the sand is heated intensely.
d) the molecules become disordered.
Answers: 2
Physics, 22.06.2019 14:40, kellypechacekoyc1b3
Asolid cylinder and a cylindrical shell have the same mass, same radius, and turn on frictionless, horizontal axles. the cylindrical shell has light-weight spokes connecting the shell to the axle. a rope is wrapped around each cylinder and tied to blocks of equal masses that are held the same height above the ground. both blocks are released simultaneously. the ropes do not slip. which block hits the ground first? or is it a tie?
Answers: 3
Physics, 22.06.2019 15:50, janeou17xn
Decreased sensitivity to an unchanging stimulus is known as
Answers: 3
Physics, 22.06.2019 16:50, Jstylez1789
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 =
Answers: 1
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