At a standard temperature, a pressure that is 0° C and 1.01 x 105 Pa pressure, the density of oxygen is 1.43 kg m-3. Oxygen is stored in a container of volume 3.87 m3 at a pressure of 2.02 x 105 Pa at a temperature of 25°C.

i. What volume would the same mass of oxygen occupy at a ‘standard
temperature and pressure’? calculate the mass of oxygen in the container.

c. magnitude and direction

talk back to him about the sport and show him your expertise or leave the room

we're given that v₀ = 0 and a = 5.4 m/s². therefore, since v = at + v₀ for constant acceleration the equation for velocity is

after 28s,

m/s

which i would round to 150 m/s as my final answer

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.