The greenland shark is thought to be the longest-living vertebrate on earth. early estimates of its maximum age were based on the fact that such sharks grow in length only about a centimeter per year, and yet an adult shark can reach a length of 15 feet. estimate how long an 11 foot shark might have lived.

An 11 foot (335 centimeter) might have lived 335 years

Explanation:

The length of the 11 foot shark in centimeter = 11 foot × 100cm/3.2808 foot = 335cm (to the nearest whole number)

A shark grows 1 centimeter in length in 1 year

Therefore, the time taken for the shark to grow 11 foot (335cm) is 335 years

So, an 11 foot shark might have lived 335 years

uranium fissions/breaks up giving out energy and neutrons

russian is not my first language, so i'm afraid i can't write out an answer in russian, but hopefully you can find a way to do so. here's my best translation of the problem: you're given a plot of a particle's position in one-dimensional space over time, and you're asked to find either the total distance traveled by the particle after 6 seconds had elapsed, or the total displacement of the particle after 6 seconds.

if you want the total distance traveled, you would first need to determine the particle's velocity as a function of time, then integrate that over the 6-second interval. we know the position function is quadratic with roots at 0 and 6, so we have

where is unknown. because the position is parabolic, there is symmetry about the midpoint at , and we know that

so that the position function is

which means the velocity is

then the total distance traveled is

so the total distance traveled is 20 m.

on the other hand, if you want to find displacement: the particle starts at and ends at , so its displacement is 0.