1,
37. four equally massive particles can be made to rotate,
equally spaced, around a circle of radius r. this is phys-
ically possible provided the radius and period t of the
rotation are chosen so that the following action function
is at its global minimum:
a(n) =
=
+=
p > 0.
sido
(a) find the radius r at which a(r) has a global mini-
mum.
(b) if the period of the rotation is doubled, determine
whether the radius of the rotation increases or de-
creases, and by approximately what percentage.

22 and 22

step-by-step explanation:

10 plus 12 equals 22.

12 plus 10 also equals 22 because regardless of what order they're in, they're gonna equal the same thing.

answer:   35 % is the probability of a late departure or an early arrival.

step-by-step explanation:

let l represents the late departure and e represents the early departure.

then, according to the question,

p(l) = 12 %,   p(e) = 27 % and = 4 %

and, we have to find out,

but, we know that,

which is the required equation that will use to find the probability of a late departure or an early departure.

therefore,   the probability of a late departure or an early arrival =   35 %