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convection

Explanation:

Blow dryer-Convection

Coffee cup. Convection

Explanation:

They all have something to do with heat.) Write conduction, convection, and radiation on the board. (Blow dryer- convection, curling iron-conduction, cookie or bread-baked by radiation.) ... Absolutely, hair dryers emit EMF radiation.

Convection is a common process in nature, and occurs when warmer air or liquid lies under a cooler layer. This is what happens in the coffee cup: the coffee on top is cooled by evaporation, and since cooler is also heavier, gravity pulls it toward the bottom. The warmer coffee underneath rises to the top to replace it.

the density of gold = 19.3 g/cm3

the relation between density and mass and volume is

density = mass / volume

given :

mass of gold = 13 g

density = 13g / volume = 19.3

volume = 13 /19.3 = 0.67 cm^3

thus volume of gold nugget = 0.67 cm^3

they vary. it used to be meat, grain, bread, candy, beverages, donuts, and fruits/vegetables. now they added exercise in.