Homework Statement
The security alarm on a parked car goes off and produces a frequency of 958 Hz. The speed of sound is 343 m/s. As you drive toward this parked car, pass it, and drive away, you observe the frequency to change by 95 Hz. At what speed are you driving?
Homework...
Oh Yes, you're right, i made a mistake in that formula. Ill edit it out.
W= nRT ln(Vf/Vi) is correct, sorry.
but from all the information given from the problem, I plugged in everything, but I don't know how you would get the specific volumes.. There aren't any actual values for volume...
Um, your post seems kind of weird. I don't know what the d stands for. And the symbol before the p...
But if you are referring to Work=Pressure*Volume, that's what I know of it.
Im not taking calculus based physics, I think our class is trying to avoid any calculus at all. I personally...
Homework Statement
The temperature of 2 moles of an ideal gas is 366 K. How much work does the gas do in expanding isothermally to 2 times its initial volume?
______ J
Homework Equations
I think they are relevant...
W= nRT ln(Vf/Vi)
PV=nRT
Q constant pressure= 3/2 nRT(Tf-Ti) + nR(Tf-Ti)...