I used to wish that I can fly
<span>First, she should put the sample in a test tube and place it in a centrifuge. This would cause the red blood cells to move to the bottom because of their higher density. Next, she would be able to decant the plasma and analyze it separately from the red blood cells.</span>
Answer:
(B) the sum total of all matter and energy
Explanation:
Universe comprises of all the matter and energy that exists in space. It contains billions of stars, planets and interstellar matter that is clouds of dust and gas. There is large amount of the empty space in between.
Universe contains stars as many as grains of sand on all beaches on the Earth. These stars are grouped into galaxies. Milky Way is one of the galaxies. Galaxies can be grouped into clusters and super-clusters.
Answer:
11.56521 m/s
Explanation:
= Area of first section = 
= Area of second section = 
= Velocity in first section = 1.9 m/s
= Velocity in second section
From the continuity equation we get

The speed of the river through the section of rapids is 11.56521 m/s
C. a longer wavelength; if you look at the electro magnetic spectrum of light you will see why