Answer:
19.6 J
Step-by-step explanation:
Before the ball is dropped, it has a <em>potential energy
</em>
PE = mgh
PE = 0.2 × 10 × 9.8
PE = 19.6 J
Just before the ball hits the ground, the potential energy has been converted into kinetic (<em>mechanical</em>) energy.
KE = 19.6 J
Answer:They are all controlled by the human beings.
Explanation:
The selective breeding, cloning and genetic engineering are some of the techniques which is induced by the human efforts.
In case of selective breeding the male and female species having the selective characters are mated with each other so that the offspring produced has the desired characters. It neither requires any enzyme nor uses udder cells.
In case of genetic engineering, the gene of interest is inserted in the bacterial species by the help of vector so that when the bacterial species amplify the gene of interest. This is how the desired products are produced by bacterial species. Example: Insulin production.
Cloning can be defined as another technique made by human beings in which the genetically identical species is made naturally or artificially for the benefit of the mankind.
<span>I'd chose D. In all five years of the study, the control resulted in the least soil erosion as well as substantially less water loss compared to the two treatment situations. </span>
Cytosine (C) and Guanine (G) are more steady under expanding heat since C and G have three hydrogen bonds while Adenine (An) and Thymine (T) have just two. The more hydrogen bonds there are, the more steady the nucleotides are. More bond dependability requires more warmth vitality to separate the securities, and since G≡C have more hydrogen securities than A=T, they are thusly more steady under expanding heat.
<h2>Hydrogen and nitrogen react to form ammonia. The statement that best
</h2><h2>describes the reactants and product at equilibrium: (A)The concentration of hydrogen and nitrogen equals the ammonia
</h2><h2>concentration</h2>
Explanation:
Reversible reaction
The reaction that can occur in either way that is the reactants can also form products and the same time products can combine to form reactants back.
That is :
A +B--> C+D
At the same time this reaction also occurs :
C+D-->A +B
In reversible reactions the stage is reached , where concentration of reactants become equal to concentration of products .That stage is called "Equilibrium state ".
In the above asked question : Formation of ammonia is a reversible reaction and in this also equilibrium is achieved where concentration of reactants and products become equal but reaction doesn't stop .
