What coefficient must be placed in front of fluorine to balance the following chemical equation? 1 CF4 + 2 Br2 1 CBr4 + F2

Astone dropped into a well is heard to strike the water after 8seconds. find the depth of the well if the velocity of sound is 350m/s

Calculate the heat capacity per object when the total energy is 4 quanta. (think of this in terms of increasing from 3.5 quanta of energy in the system to 4.5 quanta of energy in the system, if that were possible.) c4 = __ j/k/object

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