Anumber of conditions are required for a population to be in hardy-weinberg equilibrium. which of the following are correct descriptions of the conditions that must be met? check all that apply. a. no mutations b. random mating c. small population d. migration or gene flow e. occurrence of mutations f. no natural selection

There are total 5 number of conditions which are required in Hardy Weinberg Equilibrium to be established, of which no mutations, random mating and no natural selection, are given in the option.

A, B, F

Explanation:

To acquire the Hardy Weinberg equilibrium in the specified population, it must be kept in check for the random mating as given in the option. Other conditions are to have a large population which are free to mate and breed. Then there must be no allelic change in frequency as a result of mutation and mutation is allowed. The gene flow or the immigration of population or the emigration is not allowed. There must be no natural selection.  

the minimum constant speed at which she can catch the train is 2.7 m/s

given:

acceleration = 0.6

time = 4.5 s

to find:

velocity = ?

formula used:

from 1st kinematic equation we get,

v = u + at

u = initial speed of train = 0 m/s

v = final speed of the train

a = acceleration of the train

t = time

solution:

from 1st kinematic equation we get,

v = u + at

u = initial speed of train = 0 m/s

v = final speed of the train

a = acceleration of the train

t = time

v = 0 + (0.6 × 4.5)

v = 2.7 m/s

the minimum constant speed at which she can catch the train is 2.7 m/s