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irina1246 [14]
3 years ago
6

Define how one goes about selecting a sample for a clinical trial.

Biology
1 answer:
Akimi4 [234]3 years ago
7 0
F(x) = x
f(x) = x^2
f(x) = 2^x
1) Which functions intersect?

2) How many points of intersection are there?

3) What does a point of intersection mean?
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C. At what height would the pomegranate have the same potential energy as the melon? (1 point)
zvonat [6]

Answer:

Given a set of assumptions which are given below, the height at which the pomegranate will have the same potential energy as the melon is 39.19 meters.

Explanation:

Gravitational Potential Energy refers to the acquired innate energy of an object due to its elevation above the surface of the earth.

This energy is the result of gravitational pull or force acting on the object.

In other to determine at what height a pomegranate and a watermelon will have the same potential energy we need to know the other factors in play.

Gravitational Potential Energy (E<em>p</em>)= <em>mgh</em>

Where m = Mass (kg)

            g  =  gravitational field strength (N/kg)

            h  = height (m)

           E<em>p </em>= gravitational potential energy ( <em>j </em>)

Let us assume that the

  • An average pomegranate weighs about 0.255146Kg
  • An average melon weighs about  10Kg
  • g is always constant at 9.8 N/kg

Note that melons weight much more than pomegranates.

   

So, let's calculate for the E<em>p </em>of the melon at the height of  1 meter

E<em>p</em> = 10 x 9.8 X 1 = 98<em>j</em>  

Using the above assumptions, we do a goal seek using Microsoft Excel. Please see the attached image.

Calculation shows that the Height (h/Meters) at which the E<em>p </em>of both veggies become equal is 39.19m

This can be verified by inserting the figure and multiplying it. It can also be calculated as follows:

That is

E<em>p = 98j</em>

<em>m = </em>0.255146kg

<em>g= 9.8kg</em>

<em>h=  ?</em>

98= 0.255146 x 9.8 x <em>h</em>

98 = 2.5004308<em>h (we divide both sides by </em>2.5004308 to make h the subject matter<em>)</em>

<em>h = 98 / </em>2.5004308

<em>h = 39.1932462198</em>

Which is approximately 39.19

4 0
3 years ago
What structure is found in both plant and animal cells but is different in plant cells
Over [174]
Structurally, plant and animal cells are very similar because they are both eukaryotic cells. They both contain membrane-bound organelles such as the nucleus, mitochondria, endoplasmic reticulum<span>, </span>golgi<span>apparatus, </span>lysosomes<span>, and peroxisomes</span>
8 0
3 years ago
Species X and Y have very similar proteins and DNA. Species X and Z have very
IrinaVladis [17]

Answer: c

Explanation:

4 0
3 years ago
Explain how the structure of the cells that you have studied give evidence if a creator
laila [671]
Hi!

So, assuming that you mean a creator as in a religious deity - we're going to run into problems here.

In order for something to be scientifically validated, it has to be proven scientifically by following the scientific method.

As science is based off the physical world, the things we prove must reflect that. The idea of a deity is something which lies <em>outside </em>the physical realm.

This means that any proof that we do find a 'creator', will simply just be something we now know about the physical world.

We can't have <em>scientific </em>evidence of something which we cannot prove <em>scientifically. </em>

With that said, unless there is context or a piece of information missing, the question is unanswerable.

Hopefully, this helps! =)
7 0
4 years ago
Why is it important that antibodies have a symmetrical quaternary structure? to enable binding to many different antigens to cre
Morgarella [4.7K]

<span>It is important that antibodies have a symmetrical quaternary structure to create two identical binding sites for antigens. An antibody is a relatively large protein having a Y-shape. Plasma cells produce antibodies which are then used by the immune system to fight off pathogens (e.g. bacteria and virus). The antibody is able to recognize the antigen of the pathogen. It binds with it either to neutralize it directly or “tag” the microbe for future attack by other parts of the immune system. </span>

3 0
3 years ago
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