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Can u explain with diagram & well resolved forces plzzz?
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acc. of elevator exceeds the acc. due to gravity
hence, acc. to Newton's law block should fall freely with acc g
here, u=0
frm 2nd equation of kinematics,
s=ut + 1/2gt2
putting values we get
s=0.2m
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simple,
torque=M.I. * Angular acceleration
=0.5*1
=1 N.m
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let A be critical angle
sinA=1/1.5
A=sin^-1(2/3)
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In an elastic collision, K.E. always remains same since the co-efficient of restitution i.e. e=1. It indicates that there is no loss of energy & energy remains constant.Recheck ur ques.
rate if convinced or nudge
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I got it from Bansal notes
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Drift velocity is the average speed of electrons in a current carrying conductor.
It is given by
v=I/neA
I--current
n--volume charge density i.e. no. of free electrons per unit volume
e--charge on electron
A--cross-sectional area of conducter
rate if convinced or nudge
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Can u give the ans with full details?
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can u make ur ques. more clear?
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for a glass,
R1=R2
using the lens maker's formula, we get,
1/f=(  -1)(1/R1-1/R2)
1/f=0
but 1/f = power of the lens
hence power of the lens is 0
rate if convinced.
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wat's this rubbish? Can't any of the experts answer my question? I'm really disappointed
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