Recent content by rudolfstr

Think about it, would something that doesn't have mass even have a CoM or a CoG?

For black materials (assuming black is equivelent to absorbs all frequencies) the light is absorbed, which means, that if the light photon had momentum p, the change of momentum is also p. On the other side a white material would in fact not absorb the energy, but change the direction on the...

Remember you can always find a reference frame where the mirror is not moving, and the physics have to be the same, so there will be no difference wheather it is moving or not.

It's a similar question to the one : Would you include the change in g if you were to calculate the height at which you'd throw a ball?

I doubt it would go to so difficult maths. It's more likely that they want to just approximate equal distance.

tits

I've been thinking of a solution, but can't find a one. You have a square of side length 1. You have to draw 2 circles inside the square so they wouldn't go outside the square and at the same time wouldn't cross. What is the maximum area their sum can make?

not really, it you can't crunch most of problems in math just by checking a finite amount of solutions. Most problems have infinite amount of posible solutions, so checking them all is imposible.

I would recommend looking at how fast the derivative changes d2y/dx2 and the higher value of this would mean a sharper curve.

Yeah, although I'm only a student in school I wouldn't say I' m bad at maths, I thought this problem would be pretty straight forward, but there seems to be a lot of problems with this. Another problem is that experimentally i allways get something below 6, like 5.6, 5.5, 5.4.

any progress on that? Still strugaling with this :(

Yes that is very simple . The probability to get a six in the first n rolls=sum from i=1 to n of 5i-1/6i

We have a simple, fair, 6 sided dice, and we ask the question - how many times will i have to roll it (on average) to get a 6? I made an experiment (although with only 50 rolls) and i got, that the average was around 5.4.

It never started as cosine, it's allways either sine or cosine or somethin in between. It's like you move the cosine a bit to the right and if you move it by π/2 you get sine! SO all phi determines is the initial position!

Yeah it's ok. But another important question is wheather you know where work energy theorem comes from?