We can solve the problem by using Snell's law, which states
where
is the refractive index of the first medium
is the angle of incidence
is the refractive index of the second medium
is the angle of refraction
In our problem,
(refractive index of air),
and
(refractive index of carbon disulfide), therefore we can re-arrange the previous equation to calculate the angle of refraction:
From which we find
Although, the overall function<span> of the </span>cell<span> is the same, there are some important differences between </span>animal<span> and </span>plant cells<span>. The first difference is that </span>plant cells <span>have an organelle called chloroplast. Chloroplasts contain a pigment called chlorophyll (which gives the </span>plant<span> its green color).
</span><span>Centrosomes and lysosomes are found in animal cells, but do not exist within plant cells.</span><span>The lysosomes are the animal cell's "garbage disposal", while in plant cells the same function takes place in vacuoles.</span><span>Plant cells have a cell wall, chloroplasts and other specialized plastids, and a large central vacuole, which are not found within animal cells.</span>
<span>Source: Boundless. “Comparing Plant and Animal Cells.” </span>Boundless Biology<span> Boundless, 26 May. 2016. Retrieved 10 Dec. 2016 from </span><span>https://www.boundless.com/biology/textbooks/boundless-biology-textbook/cell-structure-4/eukaryotic-c...</span>
When any boat displaces a weight of water equal to its own weight, it floats. This is called the "principle of flotation": A floating object displaces a weight of fluid equal to its own weight.
7) c
opposite charges attract, equal charges repell
8) c
Followed from equation
9) d
Same reason as under 7
Dropping two objects and seeing them hit the ground at the same time
