I believe the technique is Systematically focus on different segments of the sky for short intervals. Pilots must always be watchful for other aircraft. An effective scan is performed by systematically focusing on different segments of the sky for short intervals normally 1 or 2 seconds per segment. First look in the direction of the turn, raising or lowering the glider's wing to view above and below.
Answer:
a) The allele frequencies are - 
b) Genotype frequencies for this population- 
Explanation:
Given ,
Red color of flower is dominant to white color flower
Let "R" represents allele for red color and "r" represents allele for white color
out of
flower,
are red flowers.
So the frequency of red flowers with genotype "RR" is equal to

As per hardy Weinberg's I equilibrium equation -

a) The allele frequencies are - 
Frequency of genotype "rr" i.e homozygous recessive white flower is

Substituting the values of
and
, in below equation, we get -

b) Genotype frequencies for this population- 
it is protective then are identical for all species
C. Sliding friction between a desk and the floor once it is moving