How long does it take to deliver 315 J of energy to 0.850 cm^2 of a wall that it hits perpendicularly?
May 11, 2013
explain transport proteins
January 10, 2013
There are 3 red marbles, 3 blue marbles, and 1 green marble in a bag. A marble is drawn at random from the bag and not replaced. Then a second marble is drawn. What are all the possible outcomes?
March 3, 2011