if the forces are moving in the same direction, ____ the forces. Please help i’m actually so confused!
1 answer:
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Answer:
Explanation:
density of galaxies would be times higher which is equal to 50.81.
It means in a cube that today contains one galaxy the size of the Milky Way, we would instead find 50.81 galaxies this size.
You can round this off to 52
Answer:
The speed of the sound wave on the string is 545.78 m/s.
Explanation:
Given;
mass per unit length of the string, μ = 4.7 x 10⁻³ kg/m
tension of the string, T = 1400 N
The speed of the sound wave on the string is given by;
where;
v is the speed of the sound wave on the string
Substitute the given values and solve for speed,v,
Therefore, the speed of the sound wave on the string is 545.78 m/s.
Answer:
Explanation:
As we know that for a satellite the force of gravitation is equal to the centripetal force
so we will have
so we know that kinetic energy is given as
so we have
now for time period we know
from above expression of kinetic energy we have
so we have
so square of time period is given as