0.250 moles of gas are in a piston. The gas does 109 J of work while 240 J of heat are added. What is the change in internal energy? (Be careful with + and - signs. +W = expansion, +Q =added, +ΔU = temp goes up)

Thank you!

The force acting on a beam was measured under the same operating conditions and a sample of 5 data points was collected. this process was repeated by 3 observers. the pooled standard deviations of these 3 data sets was 1.21. determine the true mean force using all pooled data (with a 95% probability). the result should look like this: true mean = mean +/- margin of error

What is the stall speed at sea level of an airplane that weights 10000 lbs., has a wing area of 300ft^2, and a maximum lift coefficient of 1.4? what is the stall speed if flaps that double cl,max are applied?

Mga halaman/punong ornamental na di namumulaklak