D. Frictional
The other three are energies while frictional energy is not
Answer:
50 degrees
Explanation:
Usually in physics in solving such questions refractive index of air is taken as 1.00 (n=1.00) by assuming that air is a vacuum. Hence, the light ray passes from water to air at an angle of incident of 40 degrees, it means that it has angle of 50 degrees to the normal line.
Complete Question
The complete question is shown on the first uploaded image
Answer:
The mass is
Explanation:
From the question we are told that
The mass of the stars are
The orbital speed of each star is
The orbital period is
The centripetal force acting on these stars is mathematically represented as
The gravitational force acting on these stars is mathematically represented as
So
=>
=>
=>
=>
The distance traveled by each sun in one cycle is mathematically represented as
Now this can also be represented as
Therefore
=>
=>
So
=>
=>
Lumbar nerves transmit signals that allow us to walk. They are a pivotal part of the human body, and without them we would be immobile. Hope this helps.
Answer:
Its roughly midnight
Explanation:
When a solar eclipse is happening, on the opposite side of the earth it is roughly midnight, and you can't see either the sun or the moon, because the sun and the moon are behind the earth.