Answer:
The answer to your question is the letter D. 2.5 N
Explanation:
The electrostatic force is the same in both directions,
If the electrostatic force on B due to A is 2.5 N, the magnitude of the electrostatic force on A due to B must be 2.5N.
Maybe the direction is different but the magnitude is the same.
Kinetic energy = 1/2 x mass x velocity²
10.0km x 100 = 10000m
Kinetic energy = 1/2 x 100 x 10000²
Kinetic energy = 5000000000J
Answer:b
Explanation:
Given
Woman earn 50% more than her husband
Total sum of their money is
Suppose man earns
so women earns
Sum of their money is
Women earns
To solve this problem we will apply the concepts of Boiling Point elevation and Freezing Point Depression. The mathematical expression that allows us to find the temperature range in which these phenomena occur is given by
Boiling Point Elevation
Here,
= Constant ( Different for each solvent)
m = Molality
Freezing Point Depression
Here,
Constant ( Different for each solvent)
m = Molality
According to the statement we have that
From the two previous relation we can find the ratio between them, therefore
We already know the change in the freezing point, then
The temperature difference in the boiling point is 100°C (Aqueous solution), therefore
Therefore the boiling point of an aqueous solution is