Help need this answered ASAP!

answer:

A) 50*(8/9)^n

B) 19.487 yards

Step-by-step explanation:

Initial height is 50 yards, every time it bounces it returns to 8/9 of its previous height. So after 1st bounce, it goes to 50*(8/9), 2nd bounce 50*(8/9)*(8/9) and so on. We can write this as a geometric series = 50*(8/9)^n

B) just plug in n = 8

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