Question
What happens to the gravitational force between two
objects if the distance between them is doubled ?Solution
Gravitational force is inversely proportional to the square of the distance between the two objects. If the distance is doubled, the force becomes one-fourth of the original value.
The income of P is 30% more than Q, and the bonus of R is 100 more than the difference of incomes of P and Q. If R's bonus is 160, then find P's income.
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