The solar system is 25,000 light years from the center of our milky way galaxy. one light year is the distance light travels in one year at a speed of 3.0×108m/s. astronomers have determined that the solar system is orbiting the center of the galaxy at a speed of 230 km/s.
assuming the orbit is circular, what is the period of the solar system's orbit? give your answer in years

years

Explanation:

Period is:

The speed of the galaxy is 230 km/s. Its angular speed is given by:

  Where R=25000 light years

Now, let N be the amount of seconds in 1 year.

This value will be in meters.

Replacing this value:

Now, the period will be:

 This value is in seconds. Since we are asked to give the answer in years, we have to divide by N (amount of seconds in a year:

years

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).

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