[2] When the summer is over, Billy goes back to school with the money saved from question 1.b. While at school, Billy takes the same amount of money every week from
his savings. After 10 weeks his sayings were down to $1,640.
a) How much money will remain in Billy's savings after 24 weeks?
b) After how many weeks will all of Billy's savings be gone?

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step-by-step explanation:

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step-by-step explanation:

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