When students work in a chemistry lab, the location of which item would be the most important for each student to know?

Which quantities are scalars? choose all that apply a.distance b.speed c. acceleration d.velocity

Calculate the amount of heat produced when 18000 coulombs of charge is transferred in one hour through a potential difference of 50v

"an open tank has the shape of a right circular cone. the tank is 6 feet across the top and 5 feet high. how much work is done in emptying the tank by pumping the water over the top edge? note: the density of water is 62.4 lbs per cubic foot."