Answer:
Crossing over Mitosis
Explanation:
A process called meiosis ensures siblings share just about 50% of their genotype. That's how siblings can have different DNA. Meiosis is a form of cell division that is only used to produce a special category of cells, called gametes.
<span>H2CO3 <---> H+ + HCO3-
NaHCO3 <---> Na+ + HCO3-
When acid is added in the buffer, the excess H+ of that acid reacts with HCO3- to form H2CO3, and due to this NaHCO3 dissociates into HCO3- to attain the equilibrium. and hence there is no net effect of H+ due to pH remain almost constant.
when a base is added to the buffer, the OH- ion of base react eith H+ ion present in buffer, then to attain equilibrium of H+ ion, the H2CO3 dissociates to produce H+ ion, but now there is the excess of HCO3- due to which Na+ ion react with them to attain equilibrium of HCO3-. hence there is again no net change in H+ ion due to which pH remain constant.....</span>
Hey there!:
The potential energy is U = m*g*h
Substitute 560.0 J for U = m*g*h so, 560.0 = m*g*h
g = 9.8 m/s²
50 ft in meters :
1 ft = 0.3048 m
50 ft = 50 * 0.3048 => 15.24 m
m = 560.0 / g*h
m = 560.0 / 9.8 * 15.24
m = 560.0 / 149.352
m = 3.74 kg
35 ft in m : 35 * 0.3048 => 10.668 m
The change initial in potencial energy from point A to B is:
mg ( h1 - h2 ) = 3.74* ( 9.8 )* (15.24 - 10.668 )
=> 36.652 * ( 15.24 - 10.688 ) =
36.652 * 4.552 => 167.57 J
According to the conservation of energy
The change in potencial energy should be equal to the change in kinetic energy , so the , the change in kinetic energy is :
ΔK = 167.57 J
Hope that helps!
Answer:
The concentration of an anthracene solution is 
Explanation:
From the question we are told that
The incident beam 
is 
The fluorescence intensity is 
The length of the medium is b = 0.875 cm
The molar extinction coefficient is 
The proportionality constant k = 0.30
According to Lambert law the Absorbance of the anthracene solution is mathematically represented as
Where 
and A is the Absorbance
Substituting value
Generally beers law can be represented mathematically as
where c is the concentration of an anthracene solution
Making c the subject of the formula
Substituting 0.875 cm for length = b ,
We have
