Recent content by mathcoral

The problem statement, all variables and given/known data The radius of an aluminum atom is about 140 picometers. How many spherical aluminum atoms could line up across a page of paper?The paper's width is 21.59 cm. Converting to picometers, the width is 2.159 x 1011 pm I used the ratio of...

Setting the derivative to 0 I got t=\frac{ln(\frac{3}{3-a})}{a} Plugging in for t in x2(t) I got x2(t)=.1(\frac{3-a}{3})3/a kg

After integrating I got x2(t)=\frac{3-a}{10a}(eat-1)e-3t The mass of salt in tank A does not depend on the choice of a. Tank B depends on a. I am unsure how to find the maximum mass for tank B.

Mixing with a Common Drain. Two tanks, each holding 1 L of liquid, are connected by a pipe through which liquid flows from tank A into tank B at a rate of 3-a L/min (0<a<3). The liquid inside each tank is kept well stirred. Pure water flows into tank A at a rate of 3 L/min. Solution flows out of...