Answer:
= ( ρ_fluid g A) y
Explanation:
This exercise can be solved in two parts, the first finding the equilibrium force and the second finding the oscillating force
for the first part, let's write Newton's equilibrium equation
B₀ - W = 0
B₀ = W
ρ_fluid g V_fluid = W
the volume of the fluid is the area of the cube times the height it is submerged
V_fluid = A y
For the second part, the body introduces a quantity and below this equilibrium point, the equation is
B - W = m a
ρ_fluid g A (y₀ + y) - W = m a
ρ_fluid g A y + (ρ_fluid g A y₀ -W) = m a
ρ_fluid g A y + (B₀-W) = ma
the part in parentheses is zero since it is the force when it is in equilibrium
ρ_fluid g A y = m a
this equation the net force is
= ( ρ_fluid g A) y
we can see that this force varies linearly the distance and measured from the equilibrium position
Gravitational force decreases with increasing distance. So it decreases!
Answer:
ideas can change as new discoveries are made.
though "we have yet to discover how to make a perfect organism" is also a valid choice? maybe refer to a textbook or something
Answer :
(A) The value of
at 298 K is, 1521.9 kJ
(B) The value of
at 3652 K is, -301.59 kJ
Explanation :
Part A :

where,
= standard Gibbs free energy = ?
= standard enthalpy = 1684 kJ = 1684000 J
= standard entropy = 543.7 J/K
T = temperature of reaction = 
Now put all the given values in the above formula, we get:


Part B :

where,
= standard Gibbs free energy = ?
= standard enthalpy = 1684 kJ = 1684000 J
= standard entropy = 543.7 J/K
T = temperature of reaction = 
Now put all the given values in the above formula, we get:


An element is composed of millions of atoms and a compound is composed of molecules. When an atom reacts with another atom, a molecule is formed.
For example, if sodium reacts with chloride, it forms sodium chloride (Common salt). Here, sodium and chloride are elements and sodium chloride is a molecule. In this way, millions of atoms of sodium reacts with chloride and forms common salt.
Again, when the common salt is mixed with other compounds such as water, it forms a mixture.