Homework Statement
rain is falling normally on a circular region of radius 25cm at a rate of 1.2gs-1
suppose the velocity of each raindrop just before it reaches the region is 10cms-1
and the collision between each raindrop and the region is perfectly elastic
find the avg pressure exerted...
Homework Statement
http://upload.lsforum.net/users/public/c7843Untitleda235.jpg
when the switch is closed
what happen to the golden ring when the switch is closed? explain
the switch remains closed. what happen to the ring if the slide contact of the rheostat
i) is kept at A
ii) moves from A...
http://upload.lsforum.net/users/public/m28175Untitledw43.jpg
Q 21 why the is not downward?? it gains weight!
Q22 why the direction is not out of paper, by right hand grip rule, 4 sides of the wire can produce a B-field which is out of paper!?