Recent content by TonyCross

Thanks that clears up my confusion. cheers

Hi, thanks for the comment. Why i find it counter intuitive is simple. Consider an Asteroid of a given mass travelling at a constant velocity, now imagine this asteroid breaks into two equal parts. Each part now has the same velocity, but the mass is halved so each of the parts now have half...

Thanks for your answer, the reason for the question arose from a thought I had about Newtons 3rd. Consider you are in a vessel in space, you move a block of ice, the spacecraft has to react in the opposite direction, normally this craft movement is cancelled by the conservation of energy as the...

Hi, Am i correct in thinking that if we take a block of ice, moving at a constant velocity, it's then exposed to a heat source which melts the ice and turns it into water vapour, that we have simply removed any Kinetic energy, by Sublimation or converting it into heat. My question is does the...

Thanks for your input.

The original question was "Given a fixed force applied to a mass, what effect would the introduction of a gas compression component make? " Thanks very much for your answer, much appreciated.

Hi Steve, Thanks for your comment, I suppose that in case A the force is applied to the centre of mass causing a displacement in -x only in case B the centre of mass may alter slightly as the piston is compressed but I imagine this would not have any effect on the vector displacement. I guess...

Ah yes I can see my mistake in the cross-sectional area, thanks

Hi, Thanks very much for replying, in Scenairo B if there is energy lost due to the heating event why would the resultant Kinetic energy be the same, would this not violate the conservation of energy law? i.e A is 1 m/s2 then B would also be 1 m/s2. Yes the kinetic energy is time dependant...

I forgot to give my final answer by using the figures in my example. reverse Ke Formula v = sqrt Ke/1/2m v= sqrt 335.04/500 = .8186 m/s

I have attached an image showing the perimeters of the problem. I have included what I think is the solution, could someone please take a look and tell me if I am on the correct path, in the solution I am taking Joules as a common term to attempt to solve the question. The gas I have used is N...

Thanks Dale, you actually answered my initial question earlier in the thread, haruspex made a really good examination of the physics. I think we can now call this question well and truly answered. Thanks to everyone who gave their input to the discussion.

So do I...

All good points how would you approach the problem?

I have attempted to use your graph with some imaginary velocities, does this seem correct?