The question is on the attachement below and there is a tree diagram with information on it.

56 times

Step-by-step explanation:

P(red & red) = 0.5×0.6 = 0.3

Expected no. = no. Of trials × p

No. of trials: 84/0.3 = 280

P(blue & blue) = 0.5×0.4 = 0.2

Expected no. = 280 × 0.2

= 56

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

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