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aliya0001 [1]
3 years ago
12

Please help with this

Biology
1 answer:
bogdanovich [222]3 years ago
3 0

Answer:

Question 7:

C

Question 8:

C

Explanation:

Question 7:

If the pH number is smaller, the solution is more acidic. In turn, this means that it contains more H+ ions that OH- ions

Question 8:

A buffer is a solution that can resist pH change upon the addition of an acidic or basic components. It is able to neutralize small amounts of added acid or base, thus maintaining the pH of the solution

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Answer:

Photosynthesis occurs in the chloroplast of the plant cell. Carbon dioxide, water, and the sun's energy are necessary for the chemical reactions of photosynthesis. The products of photosynthesis are glucose and oxygen.

Explanation:

that's the answer ♥

3 0
3 years ago
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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

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2 years ago
4. Why might a physician order a test in the spine to diagnose a problem in the head?<br> I
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Explanation:

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Which of the following is a renewable resource?
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Sunlight

Brainliest? I need 2 more XD

Explanation:

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How does the loop of henle enable the mammalian kidney to produce hyperosmotic urine?
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