Hi, I'm having a bit of trouble with a potential divider question. I have an answer but I'm not sure if its right and if not, why its not right. I've attached a crude drawing of my problem below, I have a question asking what the output voltage is (between P and Q terminals) with the given...
Perfectly inelastic means they stick together so they have a common final velocity. Use the principle of conservation of momentum and the kinetic energy equation for the 2nd one. Show me how you think you would do this question bearing in mind what I've said.
The conservation of momentum applies to this one again, m1u1 + m2u2 = m1v1 + m2v2
Initially everything is at rest so the left hand side of that equation will equal 0. (1000*0) + (200*0). Whats the final velocities? Try it from there.
(Others feel free to correct me if I am leading him...
Thats what I got, yes hopefully :)
The letter you use is up to you really, as long as you don't confuse yourself. Make it clear that one side is the initial velocity and the other is the final velocity. i just used v because its what I use for final velocity. In this case I would have noted...
since the masses stick together the second half of that equation i wrote would be (m1 + m2) x common velocity of the two. there is no v1 and v2 because they have stuck together and will both be traveling at the same velocity. the final velocity won't be zero though. after they have stuck...
Hello, I am having some difficulty following the method for finding an equation for an ideal gas. There are a few different forms, but I'm proving 1. For an indiviual particle of a gas in a cube container side length L, it is traveling with a velocity of u1 on the x-axis (its x component of...
Use the conservation of momentum
m1u1 + m2u2 = m1v1 + m2v2
assign each mass to m1 and m2, u is the initial velocities. this particular example is a completely inelastic collision so there will be only 1 mass (m1 + m2) with a common velocity after the collision. Hope this helps
I would assume its wanting you to make something with vibrating strings. I would maybe read up about standing (also called stationary) waves, frequency and resonance etc. Also, it might be of use that the note A is 440Hz. Its not much, but hopefully it'll get you started :)
I would use one of those 4 equations of motion. If you take
v = final velocity
u = initial velocity
a = acceleration
s = displacement
t = time taken
s = ut + 1/2at^2
sign convention i think its called means you can keep downwards to be the positive direction.
v = not needed
u = 0
a =...
Thank you. I should have spotted that since I am much further on in maths now, from when I got this question. I did try to take advantage of https://www.physicsforums.com/latex_images/35/352887-0.png previous to posting the first time. However I came out with a very large sum, what I had before...
Oh and if possible, could someone please tell me why setting the two equal to each other does not work? I might have a serious hole in my understanding of it all. Thanks.
Thank you for the reply. I can see a link there and use Ssinx/Scosx to cancel S and leave tanx = 2.5/6, then use inverse tan of 2.5/6 = x. Then working out S would be straightforward from there. Why would I do this though? Why would I divide the horizontal equation into the vertical equation? Is...
Hello, this isn't technically a homework, but its something I'm trying to figure for myself. As shown in the diagram (in the attachment), there are three forces acting on a particle. The particle is in equilibrium. I have to find the magnitude of S and the angle theta (which ill write as x...