A ballon is pumped at the rate of `4cm^(3)` per second what is the rate at which its surface area increase and radius is 4 cm?

A sphere increases its volume at the rate of pi cm^(3)//sec . The rate at which its surface area increases when the radius is 1 cm is

A copper sphere is being heated. Its volume as a result of increasing at the rate of 1mm^(3) every second. Find the rate at which its surface area is increasing when its radius 10 cm.

A copper sphere is being heated. Its volume as a result of increasing at the rate of 1mm^(3) every second. Find the rate at which its surface area is increasing when its radius 10 cm.

A sphere increases its volume at the rate of picc//s . The rate at which its surface area increases when the radius is 1 cm is

A balloon is pumped at the rate of 2 cm^3// minute. Write the rate of increase of the surface area, when the radius is 0.5 cm.

The volume of a spherical balloon is increasing at the rate of 20 cm^3/sec . Find the rate at which its surface area is increasing at the instant when its radius is 4 cm.