Bianca sends her brother phineas an e-mail to invite him to dinner. in this scenario, what is the channel according to shannon's model of communication? a. bianca b. dinner c. e-mail d. phineas need

Heat from the sun reaches earth to a. radiation b. convection c. conduction

Ascrew incorporates which other simple machine? lever wheel and axle inclined plane pulley

A175 g lump of molten lead at its melting point (327 c) is placed into 55.0 g of water at 20.0 c. the specific heat of lead is 130.j/kg c and the hf of lead is 20,400 j/kg. when the lead and the water have reached equilibrium, what is the temperature of the mixture?