Answer:
Unsaturated Solution: Less amount of salt in water, clear solution, no precipitation. Saturated Solution: The maximum amount of salt is dissolved in water, Colour of the solution slightly changes, but no precipitation. Supersaturated Solution: More salt is dissolved in water, Cloudy solution, precipitation is visible.
Answer:
0.544 eV
Explanation:
To ionize the hydrogen atom 
So the required energy is 
as
So 
We have to calculate the energy required to ionize hydrogen atom when it is in n=5
So the energy should be less than 
Answer:
a magnifying glass cause a Virtual image
Explanation:
:)
Upstream speed = S - 1
Downstream speed = S + 1
Average speed = total distance / total time
Average speed = (S - 1) + (S + 1) / 2
= S
S = 6 miles / 4 hours
S = 1.5 miles per hour
Answer:
The gravitational force between the sun and the earth drops to (1/16) of its original value.
Explanation:
According to the gravitational law, gravitational force between two bodies is directly proportional the product of the masses of the two bodies and inversely proportional to the square of their distances apart.
If the two masses and the other constants of proportionality are held constant, the gravitational force between two bodies is inversely proportional to the square of their distances apart.
F ∝(1/R²)
If the initial gravitational force between the sun and the earth is given by F₀ and the distance between the sun and the earth is R₀.
F₀ = (k/R₀²)
where k is constant regardless of the values of corresponding gravitational forces and distances apart.
Then, let the new distance apart be R₁,
R₁ = 4 R₀
The new gravitational force between the sun and the earth, F₁ will be given by
F₁ = k/(R₁²)
Recall, R₁ = 4 R₀
F₁ = k/(4R₀)² = k/16(R₀²) = F₀/16
Hence, the gravitational force between the sun and the earth drops to (1/16) of its original value.
