The surface area of a spherical balloon being inflated, changes at a rate proportional to time `t`. If initially its radius is 1 unit and after 3 secons it is 2 units, find the radius after t seconds.

The surface area of a balloon being inflated changes at a constant rate. If initially, its radius is 3 units and after 2 seconds, it is 5 units, find the radius after t seconds.

The volume of spherical balloon being inflated changes at a constant rate. If initially its radius is 3 units and after 3 seconds it is 6 units. Find the radius of balloon after t seconds.

The volume of spherical balloon being inflated changes at a constant rate. If initially its radius is 3 units and after 3 seconds it is 6 units. Find the radius of balloon after t seconds.

The surface are of a balloon being inflated changes at a constant rate. If initially, its radius is3 units sand after 2 seconds, it s 5 units, find the radius after t seconds.

The surface of a spharical balloon is increasing at a rate of 2cm^2/sec. Find the rate of increase of its volume when its radius is 6 cm.

The surface area of spherical balloon is increasing at the rate of 2cm^(2) /sec. Find the rate of change of its volume when its radius is 5cm

Find the surface area of a sphere when its volume is changing at the same rate as its radius.

A spherical balloon is being inflated at the rate of 35 cc/min. The rate of increase of the surface area of the bolloon when its diameter is 14 cm is

If a spherical rain drop evaporates at a rate proportional to its surface area. Form a differential equation indicating the rate of change of the radius of the rain drop.

Assume that a spherical rain drop evaporates at a rate proportional to its surface area .Radius originally is 3 mm and 1 hour later has been reduced to 2 mm, find an expression for the radius of the rain drop at any time.