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.
If cos 2θ = 3/4, find the value of sin² θ.
The area of a square garden is 400 m². Calculate the perimeter of the garden.
A rectangular water reservoir contains 42,000 liters of water. Find the depth of water in the reservoir, if the base measures 6m by 3.5m
I. x2 + 31x + 238 = 0
II. 2y2 + 70y + 612 = 0
From a point located x meters away from the base of a tree, the angle of elevation to the top of the tree is 60 ∘ . If the tree is 54 mete...
A school has 1,200 students. 60% of them are boys. If 30% of the boys and 40% of the girls are on the sports team, how many students are not on the spor...
How many different signals can be formed using 3 red, 2 green, and 1 yellow flag?
The diameter of the base of a cylindrical drum is 14 cm and its height is 15 cm. The drum is full of water and the water from the drum is transferred to...
Person 'X' can complete a task in 30 days when working at full efficiency, while person 'Y' can finish the same task in 50 days at full efficiency. If '...
