What is the physical mechanism of heat conduction in a solid, a liquid, and a gas?
What will be an ideal response?
In solids, conduction is due to the combination of the vibrations of the molecules in a lattice and the energy transport by free electrons. In gases and liquids, it is due to the collisions of the molecules during their random motion.
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The best time to apply fertilizer is _____
A) prior to the active growing season B) when the grass is dormant C) in the summer for cool season grasses D) in the winter
One of the worst insect pests of corn and cotton is the corn earworm
Indicate whether the statement is true or false.
A CAD operator realizes that it takes 36 minutes to plot a drawing. How long in hours will it take to plot 30 hard copies of the same drawing?
What will be an ideal response?
Dimensions needed to calculate the volume of concrete needed for a job are found in the _____
a. building codes b. construction drawings c. materials lists d. job specifica