Recent content by Tomdickjerry

that Lift would be equal to Weight?

Homework Statement An aircraft has a mass of 1100kg and a wingspan of b=9.75m. the surface of the wing is 15m2 and its span effciency factor e=0.90. the parasitic drag at zero lift of the aircraft CD0 is 0.0225. Take density of the air to be 1.225kg/m3 The aircraft has lost power and is...

m=pv/rt. i don't know what a diatomic gas is it wasn't covered in my syllabus but I am assuming you're referring to the k=1.4?

alright thanks! for the left side do i just use cv(t2-t1) i figured since the it isn't constant pressure process

m(h−hin)=1/2kx2?

m(h−hin)=−[kx2/2+PaAx]+kx2+PaAx ?

x would be 150mm..?

that would make W=[kξ2/2+PaAξ]0x?

would that just mean moving the W to one side and everything else to the other?

U+PV=H right?

oh.. PV+U=PaV+kx2+mhin−W is this what you mean?

erm I am not sure..

that would make it P2*Ax?

okay correct me if I am wrong but what you're asking for is P=Patm+k*x/Areapiston

the final pressure i calculated was 635.8kPa, there shouldn't be an x right since its air? assuming you meant x as in quality..? k would be 1.4 for air and Patm was given in the question at 101kPa.