## QUERY 2 Rain frame time between given radii

A. Show that the elapsed rain time from falling past radius r-| to zipping past a smaller radius r2 is given by the expression

Rewrite this equation so that the variables are train/M and r/M and so that M occurs nowhere else in the equation. Atypical curve is plotted in Figure 4 for a raindrop that passes r = 5M at wristwatch time zero (t| rajn = 0). (These radii are measured by the method shown in the box on page B-8.)

B. What happens to the value of the time lapse in equation [3] when the initial radius ^ becomes infinite? How do you account for this result?

Was this article helpful?

Through this ebook, you are going to learn what you will need to know all about the telescopes that can provide a fun and rewarding hobby for you and your family!

Get My Free Ebook

## Post a comment