The fission properties of the plutonium isotope 239pu are very similar to those of 235u. the average energy released per fission is 180 mev. during the cold war, the premier of the soviet union threatened the united states with 2.0 megaton 239pu warheads. (each would have yielded the equivalent of an explosion of 2.0 megatons of tnt, where 1 ton of tnt releases 4.2 x 109 j.) if the plutonium that fission has been 8.0% of the total mass of the plutonium in such a warhead, what was that total mass

Which explanation describes the forces involved for a person to walk down the sidewalk? a. the person's feet push backward on the sidewalk; the sidewalk pushes backward on the person. b. the person's feet push forward on the sidewalk; the sidewalk does not push on the person. c. the person's feet push backward on the sidewalk; the sidewalk pushes forward on the person. d. the person's feet push forward on the sidewalk; the sidewalk pushes forward on the person.

Describe uniform velocity and variable velocity in short

High schoolphysics 5+3 pts a neon light consists of a glass tube with metal wires at each end. when connected to a high-voltage source, the gas glows. if a fly lands on the glass tube, what will most likely happen? a) the fly will not feel a shock because the glass conducts any free electrons back into the gas. b) electrons will flow directly from the metal wires along the glass and shock the fly. c) the fly will not feel a shock because the glass insulates it from the electrons in the gas and the metal. d) electrons that are moving through the gas will be conducted through the glass and shock the fly.