In a hypothetical nuclear fusion reactor, the fuel is deuterium gas at a temperature of about 9.5 x 108 k. if this gas could be used to operate a carnot engine with tl = 864°c, what would be the engine's efficiency?

Large electric fields in cell membranes cause ions to move through the cell wall. the field strength in a typical membrane is 1.0 x 10 7 n/c. what is the magnitude of the force on a calcium ion with charge +e? what is its acceleration? is it possible for a particle with the same charge as as calcium to have a different acceleration if placed at this location? what would change the acceleration: mass of the particle? diameter of the particle?