Recent content by MrPickle

Today in class we started talking about waves. I understand waves to be energy. This makes sense to me when thinking about sound waves, because the energy can travel from one particle to the next to travel; but I don't understand how things like electromagnetic waves can travel through a...

Gah, silly mistake. Thanks a bunch for all the help.

Okay, I've worked it out but I've gone wrong somewhere. I ended up getting a distance of -0.006 from my final suvat. Here's my working out Acceleration: 600g - T = 600a T - 400g = 400a T = 400a + 400g 600g - 400a - 400g = 600a 200g - 400a = 600a 200g = 1000a a = \frac{1}{5}ms^{-1}...

Weight and the Normal Contact force or is it the tension? I'm not sure what the acceleration is going to be :confused: Or is it Weight = mass x acceleration? So it'll be 9.8?

But then the 600g mass is going into the ground? Oh wait, is it like 'denting' the ground then? And the acceleration remains the same for the final suvat? Thank you (:

I was including the ground in my diagram. There was no diagram with the question

Well how else is it going to move? Weight, Normal contact force and the forward force? That's if there's no friction.

So you're saying it's going to roll or slide, that makes sense. I could find the acceleration using F = ma, then I would have to use the suvat equations to find the speed at which it hits the ground, then use another suvat equation to find the distance traveled until it comes to a rest. I'm not...

Homework Statement Particles of mass 600g and 400g are connected by a light, inextensible string passing over a smooth fixed pulley. Initially both masses hang vertically, 30cm above the ground. If the system is released from rest find the greatest height reached above ground by the 400g...

But it is scientifically wrong, isn't it?

So when a "common" person refers to weight they actually mean mass and it's the word that's incorrectly used, not the unit?

If I were to grab a bag of sugar and say this weighs 1KG. What do I actually mean? KG is the unit for mass, not weight. What is the actual weight of the bag of sugar? (Assuming I'm on earth) Would it be 9.81N? This has been running through my mind recently, I want to try and put the common...

They're not apartments. They're in their garden blasting it away. It's obviously to loud as they have to shout to talk to each other.

My neighbour is playing their music far too loud and it's been going on for weeks. Is there possible some way I could make something to screw with their radio from a-far? Only about 10 meters. I could just ask them to turn it down, but that's not nearly as fun

What does the number say about the spin of a particle? Like for an quarks it's half, what does it mean by 1/2 spin?