Projectile + Circular Motion Help

AI Thread Summary
The discussion revolves around finding a physics problem that combines projectile and circular motion theories, with examples like slingshots or balls on strings. A suggestion is made to consider the motion of an electron in a uniform magnetic field. The original poster mentions working on electrons in a mass spectrometer. A link to a related physics forum thread is shared for additional assistance. The conversation highlights the need for practical applications of these physics concepts.
kentus
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Hi
i am studying senior physics and in need of a problem that includes both PROJECTILE and CIRCULAR motion theory in one!
eg. slingshot, ball on string etc..
could anyone help me formulate a problem or provide me with a web site?

thanks a lot
 
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How about an electron being launched in a region of uniform magnetic field?
 
kentus said:
Hi
i am studying senior physics and in need of a problem that includes both PROJECTILE and CIRCULAR motion theory in one!
eg. slingshot, ball on string etc..
could anyone help me formulate a problem or provide me with a web site?

thanks a lot

Someone else recently asked for help on this question:

https://www.physicsforums.com/showthread.php?t=112911

-Dan
 
hi
yeh, I am doing the electrons in a mass spectrometre and in mag. field
any questions?
 
Thread 'Variable mass system : water sprayed into a moving container'

Thread 'Variable mass system : water sprayed into a moving container'

Starting with the mass considerations #m(t)# is mass of water #M_{c}# mass of container and #M(t)# mass of total system $$M(t) = M_{C} + m(t)$$ $$\Rightarrow \frac{dM(t)}{dt} = \frac{dm(t)}{dt}$$ $$P_i = Mv + u \, dm$$ $$P_f = (M + dm)(v + dv)$$ $$\Delta P = M \, dv + (v - u) \, dm$$ $$F = \frac{dP}{dt} = M \frac{dv}{dt} + (v - u) \frac{dm}{dt}$$ $$F = u \frac{dm}{dt} = \rho A u^2$$ from conservation of momentum , the cannon recoils with the same force which it applies. $$\quad \frac{dm}{dt}...
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Thread 'Electric field due to charges between 2 parallel infinite planes'

TL;DR Summary: Find Electric field due to charges between 2 parallel infinite planes using Gauss law at any point Here's the diagram. We have a uniform p (rho) density of charges between 2 infinite planes in the cartesian coordinates system. I used a cube of thickness a that spans from z=-a/2 to z=a/2 as a Gaussian surface, each side of the cube has area A. I know that the field depends only on z since there is translational invariance in x and y directions because the planes are...
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