Answer:
I don't fully understand what this is about...
Explanation:
sorry :(
Answer:
Rosalind Elsie Franklin (25 July 1920 – 16 April 1958)was a British biophysicist and X-ray crystallographer who made critical contributions to the understanding of the fine molecular structures of DNA, RNA, viruses, coal and graphite. The DNA work achieved the most fame because DNA (deoxyribonucleic acid) plays essential roles in cell metabolism and genetics, and the discovery of its structure helped scientists understand how genetic information is passed from parents to children.
rosalindfranklin
Franklin is best known for her work on the X-ray diffraction images of DNA which led to discovery of DNA double helix. Her data, according to Francis Crick, was "the data we actually used" to formulate Crick and Watson's 1953 hypothesis regarding the structure of DNA.Franklin's X-ray diffraction image confirming the helical structure of DNA were shown to Watson without her approval or knowledge. Though this image and her accurate interpretation of the data provided valuable insight into the DNA structure, Franklin's scientific contributions to the discovery of the double helix are often overlooked. Unpublished drafts of her papers (written just as she was arranging to leave King's College London) show that she had independently determined the overall B-form of the DNA helix and the location of the phosphate groups on the outside of the structure. However, her work was published third, in the series of three DNA Nature articles, led by the paper of Watson and Crick which only hinted at her contribution to their hypothesis.
After finishing her portion of the DNA work, Franklin led pioneering work on the tobacco mosaic and polio viruses. She died in 1958 at the age of 37 from complications arising from ovarian cancer.
Answer:
Given equation of parabola is
and
2
=64x ......(i)
The point at which the tangent to the curve is parallel to the line is the nearest point on the curve.
On differentiating both sides of equation (i), we get
2 y
dx
d y
=64
⇒
dx
d y
=
and
32
Also, slope of the given line is −
3
4
∴−
3
4
=
and
32
⇒and=−24
From equation (i), (−24)
2
=64x⇒x=9
∴ the required point is (9,−24)
Explanation:
This is the correct answer you want
please follow the
Answer:
moles of water in
of water.
Explanation:
Mass of water = ![m = 2.5\times 10^{18} g](https://tex.z-dn.net/?f=m%20%3D%202.5%5Ctimes%2010%5E%7B18%7D%20g)
Molar mass of water = M = 18 g/mol
Moles = n = ![\frac{m}{M}](https://tex.z-dn.net/?f=%5Cfrac%7Bm%7D%7BM%7D)
![n=\frac{2.5\times 10^{18} g}{18 g/mol}=1.39\times 10^{17} moles](https://tex.z-dn.net/?f=n%3D%5Cfrac%7B2.5%5Ctimes%2010%5E%7B18%7D%20g%7D%7B18%20g%2Fmol%7D%3D1.39%5Ctimes%2010%5E%7B17%7D%20moles)
So, there are
moles of water in
of water.
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