Eastimate 921 + 1,256 + 117 by first rounding each number to the nearst hundred

2,300

Step-by-step explanation:

921=900

1,256=1300

117=100

900+1300+100=2,300

kjgfcvbjkl

step-by-step explanation:

sdfghjkl; vbnm,

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