What is an example of convection currents? a. marshmallows toasting over a campfire b. a pot being heated by an electric burner, feet getting hot when stepping across sand, a radiator emitting warm air and drawing in cool airs Only one choice on edge

Suppose that a comet that was seen in 563 a.d. by chinese astronomers was spotted again in year 1951. assume the time between observations is the period of the comet and take its eccentricity as 0.986. what are (a) the semimajor axis of the comet's orbit and (b) its greatest distance from the sun?

Wave functions describe orbitals in a hydrogen atom. each function is characterized by 3 quantum numbers: n, l, and ml. if the value of n = 2: the quantum number l can have values from to . the total number of orbitals possible at the n = 2 energy level is .

Ryan is examining the energy of the particles in a bar of gold. what is ryan most likely studying?