Saturday

March 28, 2015

March 28, 2015

Posted by **Ralph** on Sunday, April 17, 2011 at 6:09pm.

A) Find the relation between A and r

B) Find the derivative of this relation on time t

dA/dt =

C) When r = 7cm and dr/dt = 2 cm/s, find dA/dt

-----------------------------

I'm just not sure for A, is the relation going to be dA/dt = dr/dA * dr/dt??

**Answer this Question**

**Related Questions**

Math - The radius of a disk grows at 2cm/s. Calculate the growth rate of the ...

Physics - The figure shows three rotating, uniform disks that are coupled by ...

Physics please help????? - The figure shows three rotating, uniform disks that ...

Physics - three rotating, uniform disks that are coupled by belts. One belt runs...

physics - A 1.6 kg disk with radius 0.63 m is rotating freely at 55 rad/s ...

Physics - A solid cylindrical disk has a radius of 0.18 m. It is mounted to an ...

physics - A solid cylindrical disk has a radius of 0.17 m. It is mounted to an ...

calculus - The radius of circular disk is 18cm with a maximum error of 0.2cm. ...

physics - A solid cylindrical disk has a radius of 0.16 m. It is mounted to an ...

Physics 1 - The hard disk in a laptop computer contains a small disk that ...