Question

Can some one help me with this?
4. A great runner can run a mile in 4 minutes, which is equivalent to 15 miles per hour.

a. If a paramecium can travel 12 lengths of its body in a second, how fast is it going in miles per hour?

b. How many times faster than a 4-minute miler can the paramecium move through liquid?

c. What factor is ignored in these comparisons? (Hint: it grossly underestimates the paramecium’s speed superiority.)

Answer 1

How long is a paramecium?

Answer 2

It is pure math question. assume the length of paramecium x.
(1/12)x cover in one second. this is speed s=(1/12)x.
multiply and divide with 3600 and ‪1609.344‬. then you will get the speed of paramecium in miles per hours.
s=(1/12)*3600/(‪1609.344‬) x miles/hour

Answer 3

if you suppose length of paramecium x=1meter. then you will have the speed of runner 15times of s. (s is speed of paramecium).
For ignoring. I didn't get the best idea, what should be ignored. I had it in mind. May this help.