Not getting what this question wants to say!
1. Two slits are made one millimetre apart and the sreen is placed one metre away. What should the width of each slit be to obtain 10 maxima of the double slit pattern within the central maximum of the central slit pattern?
My problem is that...
the topic "capacitors"
Hi everyone!
while i was working out questions on the topic "capacitors", got stuck somewhere...
and my problem is
Suppose the arrangement is like ...
So two questions are points of my confusion...
(1) what will be the direction of flow of current?
(2) and...
@Tiny tim -
That means ur this statement
"which way would the body go if the surface suddenly turned to ice?"
is noteworthy.
just one thing..
what u mean by ur statement is
if the surface suddenly turned to ice then the body would go in the direction where
the net force acts and...
See if the box remains at rest relative to the platform then why is it in motion
with reference to the ground frame... I mean how is the body moving..!
is it something like.. a book is placed on a trolley and the trolley is moving.. ?
See if the box remains at rest relative to the platform then why is it in motion
with reference to the ground frame... I mean how is the body moving..!
is it something like.. a book is placed on a trolley and the trolley is moving.. ?
lemme post the original question out here...!
A 5kg block is kept on a horizontal platform at rest. At time t = 0, the platform starts moving with a constant acceleration of 1m/s2. The coefficient of friction μ between the block and the platform is 0.2. The work done by the force of friction...
Topic : Direction of the work done by force of friction
Consider a case when a block is placed on a horizontal platform at rest. It then starts accelerating with a constant acceleration such that,
Friction present between the block and the horizontal platform > mass times its acceleration...
It is well known that, "Neil bohr failed in his model in which he described an electron as a charged particle moving in well defined circular orbits about the nucleus." However he failed because of the two major reasons..
a) It didn't consider the wave nature of the electrons
b) contradicts the...
q) A force F acts on a block of mass m placed on a horizontal smooth surface at an angle Θ with horizontal. Then
(A) If F sinΘ < mg then a = (F + mg) / m
(B) Acceleration = FcosΘ/m where, F > mg cosecΘ
(C) Acceleration = F/m if FsinΘ > mg
(D) If F SinΘ > mg then a = (F + mg) / m...
got ur point... but i too meant the same...
i m nt differentiating the two force i just meant the different expressions for a single force..
the force between them is GMm/r^2 which also equals mv^2/r (the centripetal force which acts towards the center to keep the body rotating in a circular...
ok.. so u mean both of them acts towards the centre... Right?
since the force on the particle by the center equals GMm/R^2
and also by Newton's second law of motion, F = ma so, F = m x centripetal acceleration (which is towards the center) = m x v^2/r
and thus we get, v = root[GM/r] ...?