The radius of an air bubble is increasing at the rate of `(1)/(2)` cm/s. At what rate is the volume of bubble increasing, when the radius is 1 cm ?

An edge of variable cube is increasing at the rate of 3 cm/s. How fast is the volume of the cube increasing, when the edge is 10 cm long ?

The surface area of a spherical bubble is increasing at the rate of 2 cm^(2)//s . Find the rate at which the volume of the bubbles is increasing at the instant, when its radius is 6 cm.

The radius of a spherical soap bubble is increasing at the rate of 0.2cm/sec. Find the rate of increase of its surface area, when the radius is 7cm. ( pi=3.141 approx)

The side of an equilateral triangle is increasing at the rate of 2 cm/s. At what rate is its area increasing, when the side of the triangle is 20 cm ?

The radius of a spherical soap bubble is increasing at the rate of 0.2 cm // sec. Find the rate of increase of its surface area, when the radius is 7 cm. ( pi = 3.141 approx)

The radius of a circle-is increasing uniformly at the rate of 3cm // s. Find the rate at which, the area of the circle is increasing, when the radius is 10 cm.

The radius of a circle is increasing at the rate of 0.7 cm/s. What is the rate of increase of its circumference ?

The radius of a circle is increasing at the rate of 0.9 cm/s. What is the rate of increase of its circumference ?

An edge of a variable cube is increasing at the rate of 10cm//sec . Find the rate of increase of the volume of the cube when the edge is 5 cm long.