An air-standard otto cycle has a compression ratio of 8 and temperature and pressure at the beginning of the compression process are 560°r and 14.7 lbf/in2 respectively. the heat addition per unit mass of air is 400 btu/lb. determine the (a) maximum temperature, in 'r (b) maximum pressure, in lbfin (c) heat rejected, in btu/lb (d) thermal efficiency 10 pts] [10 pts] 10 pts 10 pts) solve the problem using the cold-air standard assumption using cv 0.172 btu/lb. r and k 14

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.