Mr. Porter owns a house. When he first bought the house it was valued at d dollars. Since then, the value of the house has incre
2 answers:
Answer:
His claim is wrong as the percent increase is 21%.
Step-by-step explanation:
The given expression is:
Given is that at the time of purchase, the house it was valued at 'd' dollars.
So, original price (d) plus percent increase on original price (0.21d) equals to current price (1.21d)
We can see that the percent increase was 21%.
Mr. Porter claims that the value of his house has increased by 121%, since 1.21 is equal to 121%.
His claim is wrong as the percent increase is 21%.
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Answer:
See below
Step-by-step explanation:
(a) Field lines
A negatively charged particle has an electric field associated with it.
The field lines spread out radially from the centre of the point. They are represented by arrows pointing in the direction that a positive charge would move if it were in the field.
Opposite charges attract, so the field lines point toward the centre of the particle.
For an isolated negative particle, the field lines would look like those in Figure 1 below.
If two negative charges are near each other, as in Figure 2, the field lines still point to the centre of charge.
A positive charge approaching from the left is attracted to both charges, but it moves to the closer particle on the left.
We can make a similar statement about appositive charge approaching from the left.
Thus, there are few field lines in the region between the two particles.
(b) Coulomb's Law
The formula for Coulomb's law is
F = (kq₁q₂)/r²
It shows that the force varies inversely as the square of the distance between the charges.
Thus, the force between the charges decreases rapidly as they move further apart.
