A20-person fraternity is making their weekend plans around 5 different parties in iv. each brother will attend exactly one of the parties. fraternity rules state that the fraternity must have a representative at each party. assume that only the number of brothers that show up at a party is important, i. e. the brothers are indistinguishable. (a) how many different arrangements of plans are possible? (b) how many different arrangements of plans are possible so that none of the bros in the fraternity have to attend a party alone? (c) suppose one specific party is planning to have pizza bites and so the five most senior bros insist on going to that one. now how many diffe

step-by-step explanation:

we can use this expression to calculate the energy gain as a particle moves with a field or the energy loss as it moves against it. (note that it is also used to define the electron-volt, a unit of energy equal to that gained by an electron as it falls through a pd of 1 v, i.e. w = 1 ev = 1.6 10-19 c 1 v = 1.6 10-19j).in fact this expression is really nothing more than the statement that potential is the potential energy per unit charge. in this case, v= w/qis simply stating that the change in potential energy(or work done) per unit charge is equal to the change in potential (or potential difference), v.student questions: uniform electric fields2electron beamcathode+5 kvanode0 v