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kiruha [24]
3 years ago
7

4. The age of the Canyon Diablo meteorite was determined by

Biology
1 answer:
stiv31 [10]3 years ago
3 0

Answer:

B) uranium-235

Explanation:

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Primary structure refers to the amino acid sequence of a polypeptidePrimary structure refers to blank. Secondary structure refer
Aleks04 [339]

Answer:

<h2>Protein exists in different forms- primary, secondary, tertiary and quaternary structure.</h2>

Explanation:

Primary structure of protein consists of amino acids joined by a peptide bonds. Peptide bond exists as covalent bond. Secondary structure of protein is stabilized by hydrogen bonds. Tertiary structure is stabilized by hydrophobic interaction, electrostatic interaction and disulphide bonds. Similarly, quaternary structure is stabilized by non-covalent interactions and disulphide bonds. So, each structure of protein is stabilized by different types of bonds.

5 0
3 years ago
A sample of rock is found to contain 200 grams of a parent isotope.how many grams of the parent isotope will remain after one ha
emmasim [6.3K]

Answer: 100 grams of the parent isotope will remain after one half life.

Explanation:

Mass of the isotope present at initial stage = N_o=200 g

The mass of the parent isotope left after the time ,t=N

Time taken by the samle ,t = t_{\frac{1}{2}}

The half life of the sample :t_{\frac{1}{2}}

N=N_o\times e^{-\lambda t}

\lambda =\frac{0.693}{t_{\frac{1}{2}}}

\ln[N]=ln[N^o]-\frac{0.693}{t_{\frac{1}{2}}}\times t_{\frac{1}{2}}

2=\frac{[N_o]}{[N]}

[N]=\frac{N_o}{2}=\frac{200 g}{2}=100 g

100 grams of the parent isotope will remain after one half life.

5 0
3 years ago
Read 2 more answers
Question 7 0410
aev [14]

Answer:

Nuclear fusion

Explanation:

Nuclear fusion is a process whereby the nuclei of two smaller atoms combine to form a much larger atom, accompanied with the release of energy. This is opposed to nuclear fission where a larger atom splits into simpler and smaller atoms.

According to this question, the process of releasing energy when two stoms combine to form a larger atom is called NUCLEAR FUSION. A very common example of nuclear fusion is the combination of hydrogen atoms in the sun to produce Helium atom, with the release of heat energy.

3 0
3 years ago
What is the main function of the central nervous system
sergejj [24]

Answer:

The central nervous system CNS is responsible for integrating sensory information and responding accordingly. It consists of two main components: The spinal cord serves as a conduit for signals between the brain and the rest of the body. It also controls simple musculoskeletal reflexes without input from the brain.

Explanation:

6 0
3 years ago
a paper mill about 16000 gallons of water and about 400 kWh of elctricity to produce one ton of paper cups
Natalija [7]

Answer:

Recycling paper uses 60% less energy than making paper from raw materials. Every ton of recycled paper saves:

·         4,100 kWh of electricity

·         380 gallons of oil

·         4.6 cubic yards of landfill space

·         7,000 gallons of water; and

·         17 trees

Explanation:

4 0
3 years ago
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