Capacitance in a medium
A man of mass () is sitting in a train movingwith velocity . He observe that a block of mass is moving towards him with velocity . Then the kinetic energy of block w.r.t man is (Assume )
A block of mass m is kept on a platform which starts from rest with constant acceleration g/2 upward, as shown in the figure. Work done by normal reaction on block in time t is:
When the rms voltages VL, VC and VR are measured respectively across the inductor L, the capacitor C and the resistor R in a series LCR circuit connected to an AC source, it is found that the ratio VL : VC : VR = 1 : 2 : 3. If the rms voltage of the AC source is 100 V, then VR is close to ?
Substitute the value of C and V in the first equation
When both arms are parallel.
Write these in ascending and also in descending order.
Which is the larger fraction?
You get one-fifth of a bottle of juice and your sister gets one-third of the same size of a bottle of juice. Who gets more?
one third is greater potion than one fifth
Is in its simplest form?
Write the simplest form of :
Find five equivalent fractions of each of the following:
Identify the fractions in each. Are these fractions equivalent?
Give example of four equivalent fractions.
Are and ; and ; and and equivalent? Give reason
Fill up using one of these: ‘’, ‘’ or ‘’
A fraction is given. How will you decide, by just looking at it, whether, the fraction is
(a) less than ?
(b) equal to ?
Give a proper fraction :
(a) whose numerator is and denominator is
(b) whose denominator is and numerator is
(c) whose numerator and denominator add up to . How many fractions of this kind can you make?
(d) whose denominator is more than the numerator.
(Give any five. How many more can you make?)
How many fractions lie between and ? Think, discuss and write your answer?