Evaluate the numerical expression. 4/3 - (-3/4)

A -1/12

B -7/12

C 25/12

D 7/12

25/12

Step-by-step explanation:

4/3 - (-3/4)

= 4/3 + 3/4

then you make them have the same denominator by multiplying by the other one.

4x4/3x4

3x3/4x3

16/12+9/12

=25/12

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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