Steve4Physics's latest activity

Thank you all for your thoughtful analysis.

The key is to identify all the forces exerted by the water on the various internal surfaces of the double- piston. Note that the small...

It has doubled - see the 2 areas indicated in yellow: Minor edit.

If I understand correctly, 's' is the piston's effective surface area. By going from the single-piston to the double-piston, you have...

And if you want inline fractions to look bigger, use \dfrac instead of \frac Inline with \frac ##a=\frac{F}{m}## is the acceleration...

Check your working. I get ##T=\frac{-5a+300}{4}##. I don't know if this is the only mistake. As @kuruman says, the preferred approach...

You mean "If the acceleration of the cylinder's centre of mass is 0,". With some assumptions, the above equations look ok . (A free...

It's better to use algebra and plug the numbers in at the end. You should be able to express the percentage energy loss as a function of...

I get 17.8%. Note that energy is inversely proportional to wavelength.

Yes, thank you Steve4Physics, my mistake was using the wrong value for cos 110 degrees.

##\cos (110^{\circ})## is negative so you can tell that ##1 - \cos (110^{\circ})## will be greater than 1. (I haven't checked if that...

the tangent component of the acceleration of a point on the edge

Hi @ibrkic0. Welcome to PF. This forum tries to provide guidance/help with homework problems - but not complete solutions. The aim is...

@Robeurer, in addition to what's already been said: Is the rope wound around the cylinder (like a yo-yo) or is the left end of the rope...

Note that ##\vec {F_{g\parallel}}## and ##\vec {F_{g\perp}}## are the wrong way round on your diagram. If you correct them, the above...