Question 2 A half litre bottle has a mass of 80g. It contains 500 cm
of liquid when full. The bottle is filled with olive oil of
density = 0.90 g/cm?.
a Calculate the mass of oil in the bottle.
b Calculate the mass of the full bottle.
Calculating volume
Ve can rearrange the equation for density to make volume its su
ke this:

0.55x745.7j and a calculator

answer; how far out of place which the object finished relative to the starting location;

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.

0.93xc=0.93x3x10^8m/s

2.54cm is 1 inch

360seconds i 1 hr