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A hollow sphere of radius R lies on a smooth surface. It is pulled by a horizontal force acting tangentially from the highest point. Find the distance travelled by the sphere during the time it makes one full rotation.
An electron is in a box of width 3*10^-10m.what are de broglies wavelength and magnitude of momentum of the electron if it is in A)n=1 level B)n=2 level C)n=3 level Ans) Use the
It is the need of elastic strength of a substance when subjected to repeated stresses and strain. If the substance is reserved undisturbed for some time, the previous properties ar
a) Spin motion of electrons b) On the basis of spin and orbital motion of electrons c) These are feebly attracted in an external magnetic field i.e., have a tendency to go fr
A simple harmonic oscillator of amplitude A has a total energy E. Determine (a) the kinetic energy and (b) the potential energy when the position is one-third the amplitude. (c) Fo
How do you calculate the initial velocity?
what is azimuth angle?
Why does heat cause matter to expand? Water contracts as it cools, like all other liquids, unless it reaches a temperature of about 4 degrees Celsius, at which point it enlarge
An alternating voltage v=250sin800t volts is applied across a series circuit having a 30 resistor and 50µF capacitor. Calculate (a) the circuit impedance, (b) the current ?
Thomson experiment; Kelvin effect (Sir W. Thomson [later Lord Kelvin]): While an electric current pass through a conductor whose ends are maintained at distinct temperatures,
The potential difference across a 4 ohm resistor is 20 volts. Assuming that all of the energy dissipated by this resistor is in the form of heat, how many joules of heat are radia
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