Homework Statement
Ball of mass M collide two balls of mass m , elastic collision .
initially, M has velocity v , and two balls are stationary.
after the collision the two masses move ,like in figure , v_a , v_b /
What is the velocity V ,of mass M after the collision ?
Homework...
Homework Statement
[/B]
2 masses connected with a solid rod .distace between them is 2L ,
total mass is M .
B total mass is m ,length L can freely move between A and A'
on flat and frictionless surface. all collisions are elastic.
at the beginning B was stuck to A and all the...
How ?
the ball bounce at some parabolic curve .
the time of flight depends on the initial vertical velocity , v_{0y} .
i know that |\vec v_0| =\sqrt{2gh} ,and that it . |v_{0y}| = ? .
thanks :)
...mgH of course:)
Q : So what is the average rate that energy is lost ?
some scrawling ...
if mgH is the energy lost per cycle ...and if at some point it was E_0 then after ...
say 5 steps it become E_0 - 5 (mgH) ...
so they ask me to find \frac{E_0-5(mgH)}{5} or...
Homework Statement
A ball bounces down a uniform flight of stairs of height H , rising after each
bounce to to the level h of the previous stair .
the velocity of the ball before the impact is equal in all the impacts .
what is the average power of energy loss ?
Homework EquationsThe...
sorry about my English ...
- What came in must come out ...
3.
this is your Diagram:
(N.B. the dots in the cone are just to give it shape)
E
-->.../.\
-->../...\
-->./...\ <---- cone
-->/____\___________ <- table
...
E
-->.../!
-->../.!
-->./..! <---- half cone...
sorry about my English
Homework Statement
In Purcell 3.7 (Problem) and Griffith there is a question,look at fig.
(we have 4 conductors with charges +Q,-Q,+Q,-Q (b),what will happen
if we connect them with tiny wires in pairs )
Griffith say that c distribution of charge ,can't be a...