An experiment involves 31 participants. From these, a group of 5 participants is to be tested under a special condition. How many groups of 5 participants are possible?

169911 groups of 5 participants are possible

Step-by-step explanation:

Total no. of participants = 31

We are supposed to find no. of groups of 5 participants are possible

We will use combination over here  :

Formula :

Substitute r = 5

n = 31

So,no. of groups of 5 participants are possible =

So,no. of groups of 5 participants are possible:

Hence 169911 groups of 5 participants are possible

step-by-step explanation:

see if this :

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