Recent content by xto

What formula should i use to calculate the loss in kineti energy during braking and the power dissipated as heating in the brake do i just use ke=1/2mv^2 and work done =force x distance ?

ok , i kind of get it beacuse I'm given 2 R Rv is 6 the other R is 0.287kJ/kg K so its (1.1832)x(2.2x10^3) --------------------- (0.287)x(303k) then i get 29.90g (to 2d.p) Air is that right for the mass of air present? By the way , thank you so much for the help

i)isothermal compresssion from state 1 through a volumetric compression ration of 6 to state 2 ii) isobaric expansion from state 2 back to the initial volume thus reaching state 3 iii) isochoric cooling from state 3 back to the original pressure to reach state it ask for the mass of air...

I've serach for almost a day now , just to search the formula to calculate the maximum pressure in the cycle A very big thank you and appreciate for the help

The question is a volume of 2.2m^3 of air at inital conditions of 1.2bar and 303K undergoes the following process to complete a cycle : i)isothermal compresssion from state 1 through a volumetric compression ration of 6 to state 2 ii) isobaric expansion from state 2 back to the initial...