All Questions
5
questions
0
votes
3
answers
67
views
How do velocities become equal when potential energy is maximum? [closed]
I was given this diagram and asked to find the maximum potential energy during the subsequent motion if one of the blocks is projected with a kinetic energy K initially.
So I did reach upon the answer ...
- 23
1
vote
0
answers
77
views
A pendulum consists of a rod with length L and a coin of mass m
A pendulum consists of a rod with length $L$ and a coin of mass $m$. The pendulum is held in a horizontal position and then is released with a minimum velocity needed to make a full circle.
What's the ...
- 11
1
vote
1
answer
1k
views
Well-defined momentum
I have a question which states:
Show that a particle can have a well-defined momentum in every energy eigenstate if and only if the potential energy is uniform in space.
I am completely unsure how ...
- 77
-2
votes
1
answer
273
views
How do you get the height of the block 1 after the blocks collides with block 2 on a frictionless ramp? [closed]
to get the initial height of block 1, i did mgh = 1/2(mv^2) so, 9.8(1.4)= 1/2(v^2)
and ended up getting v = 5.238. I'm not sure how to go on doing the rest.
- 1
1
vote
1
answer
766
views
De Broglie wave length of electron [closed]
Consider an electron with total energy $E>V_2$ in a potential well with
$$V(x)= \begin{cases}
\infty & x< 0 \\
V_1 & 0< x< L \\
V_2 & x>L
\end{cases}
...
- 568