Chapter 12.7, Problem 59E

a.

To determine

To estimate: The change in the center line velocity $V$ when $R$ changes from $R=3\text{cm}\text{to}R=3.05\text{cm}$ and $L$ changesfrom $L=50\text{cm}\text{to}L=50.5\text{cm}$.

b.

To determine

To estimate: The percentage change in the centerline velocity $V$ if $R$ decrease by $1\%$ and $L$ increases by $2\%$.

c.

To determine

To complete: The sentence, “If theradius of the cylinder increases by $p\%$, then the length of the cylinder must increase by approximately _____% in order for the velocity to remain constant.