Recent content by LotusTK

I didnt know they were created in equal pairs. I thought that we can "easily" create particles in colliders but was more difficult to make antiparticles come into existence/ be created in colliders. On the note about danger, i was reading that a 1 kilo annihilation of matter and antimatter...

But is it not the case that only a small fraction of what we manage create in accelerators is antimatter? Thats what i meant about it being hard to create.

Why is antimatter difficult to create? I know that heavier particles are more difficult to create because you need a high energy collision to give the heavy particle any chance of being created. And i know why antiparticles are difficult to keep in existence and store AFTER they are created...

And is this because of the change of gravitational potential energy to kinetic energy? And when you say speed up, you mean the speed with which it is orbiting, right?

Is this correct for the water: At the top, mv^2/r = mg All other points: mv^2/r = mgcos(a) + Rcos(a) Sorry if i keep getting things wrong!

I know that centripetal force isn't a real force. I understand what you say. So at either side, when the string holding the bucket is parallel to the ground mv^2/r = T (tension in string). And at all other positions mv^2/r = T+mgcos of the angle from the vertical. I think I am finding it...

I meant after that point, the acceleration is always directly down, because the force due to gravity acts directly down. But now i realize what you were initially asking: Reaction is zero only at the top, but is not zero again afterwards when it continues to turn. But in order for the reaction...

Well this would mean that the only force acting on the water is weight, so the water will no longer follow a circular path, since it is no longer being accelerated perpendicular to its motion. So it would just fall towards Earth with a parabolic motion rather than circular motion?

Wouldnt it just be two forces, both acting towards the centre of rotation and therefore directly downwards. One being the reaction, and the other being the weight?

Thanks for the reply Oops. I meant the reaction on the water from the bucket must be greater than the weight of the water. I say this because wouldn't the bucket have to be accelerating towards the centre of the rotation faster than the bucket for the water to stay in the bucket/ lose contact...

Homework Statement (sorry for spelling of Earth, had to be to be done to fit it in lol) Does a satellite in orbit around the Earth speed up as it falls towards Earth? I understand why the satellite speeds up mathematically. If we equate the centripetal force equation and the equation for...

Homework Statement The water stays in the bucket, even at the top of the circular path, as long as the speed exceeds a certain value. Explain why. I think i have a good answer, but not 100% sure. My answer: There is a centripetal force acting on the bucket and the water since they are...

Thanks for the reply. I didnt know protons and neutrons had energy levels, i thought that was only for electrons. So would i be correct in saying that the two types of beta decays control the neutron proton ratio? And by looking at a neutron to proton graph which shows "regions" of...

My understanding of what makes an atom unstable is this: Large nuclei will have a high number of protons, and as a result there will be large amount of electrostatic repulsion between the protons in the nucleus. So when the nucleus is too large (too many protons) The electrostatic repulsive...

Thanks for the reply I was mentioning the electrons since they are the actual physical things that feel the force due to the magnets magnetic field. Im not too sure how the field of the magnet and the field produced by the current interact, would they create a "resultant" field or something...