Think of the cell membrane as a net and the nutrients are the perfect fit to fall through it. Where the waste is not the right size and will not fit through the holes of the net.
Answer:
It has a mass of 40 kg.
Explanation:
Because Force = mass x Acceleration or F = m a, we could say that the mass is force/acceleration which in your case is 2,400/60 which equals 40 kg.
The SI unit for velocity and speed is meters per second
A light-year is a unit of length or distance.
It's defined as the distance that light (or any electromagnetic
wave) travels through vacuum in one Earth-year.
==> about 9,460,730,000,000,000 meters
==> about 5,878,620,000,000 miles
The word you are looking for is <em><u>refraction. </u></em> Reflection is when 100% of the light is bounced back, refraction, however if when light <em>bends</em>, or, changes wavelengths.
