Recent content by cubud

Worked great, I thought I'd share the source in case anyone else stumbles across this. It should be pretty easy to work out the calculations from it. function TSpriteBehaviorMoveTo.GetFullyEasedOffset( Original: Single; Target: Single; DurationSecs: Single; TotalDeltaTime: Single...

I will give this a try, thank you!

Let me see if I can clarify. At an acceleration rate of 1pixel/second^2 I would expect my object to have the following Y locations over 6 seconds. 0,1,3,6,10,15,21 What I need to do is the opposite. I wanted to understand an equation that when given the acceleration rate (-1 pixels/s^2)...

Hi everyone. I am a programmer and I think some basic physics will help me to achieve something I wanted to do. I want to move an object on the screen a fixed distance in a fixed time, but rather than moving with a uniformed velocity I want it to slow down at a constant rate so that it...

Thanks very much. If I recall correctly we don't really see massive time shifts until we are traveling very close to the speed of light, so even with time dilation it seems that everything we see would look like gamma rays, would this still be the case for light that had passed us and then...

jtbell I'm sorry but even the input on that form is beyond me at this stage. It's not that I want to learn how to calculate the answer (yet) it's just that I want to get an idea of the basic "plain English" principles.

So our perception of time would slow down, but not sufficiently to stop us seeing all light as gamma rays?

The maths is beyond my current level.

I'm hoping someone can clear something up for me. I was recently asked if someone traveling close to the speed of light toward a star would see that star's light as gamma rays. I argued that they would not due to their perception of time slowing down, whereas someone else argued that...

Some of the temperature radiates into the air and heats things around the fire (such as me, watching it) so the amount of heat energy within the fire is decreasing. Where does the extra heat energy come from?

When you introduce enough energy which causes a particle collision and a bonding between carbon and two oxygen atoms we essentially have fire. The energy released from the bonding then applies a force to another atom causing that to fire off and collide, and so we have a chain reaction...

Thanks very much for your answers. In that case where the source is a photon do we see absorption lines in the spectrum because A: The photon that was previously heading towards us is temporarily absorbed by the atom and then emitted in a random direction, causing a drop in the average number...

So if all energy is always transferred via photons why do we see a distinct emission spectrum for hydrogen and not photons in all the other frequencies?

When oxygen and carbon bond they release energy, which part of the atom loses this energy and is it lost in the form of heat?

Hi all I'm unsure about something and so would like to pose the following question. When an electron moves to a lower state it emits energy in the form of a photon. But in order to get excited into this higher state it must first receive a minimum amount of energy. Is the energy received...