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The angular position of a point on the rim of a rotating wheelies given by theta=4.0t -3.0t2 +t3, where theta is in radians and tis in seconds. What are the angular velocities at a) t=2.0sb) t=4.0s? c) what is the average angular acceleration for the time interval that begins at t=2.0s and ends at t=4.0s/ What are the instantaneous angular accelerations at d) the beginning and e) the end of this time interval?
A proton and an alpha particle pass by the gap of a strong magnet. If both particles have the similar initial velocity, how many times greater will the defection of the proto
Q. What are coherent sources? Two sources are alleged to be coherent if they emit light waves of the same wave length and start with same phase or have a constant phase differ
Q. Describe the method of measurement of the thickness of a thin transparent mica slit using Fresnel's Bi-prism. Give necessary theory. Draw suitable diagram. Measurement of
a. A certain radioactive material emits gamma rays with energy 1 MeV. Another sample of radioactive material emits gamma rays with energy 10 keV. If both of these emit the same amo
Theory of bi prism
Q. An aircraft having awing span of 20.48 m flies at a speed of 40 ms -1 . If the vertical component of the earth's magnetic field is 2 X 10 -5 T, compute the emf induced between
A rectangular surface (0.14 m x 0.39 m) is oriented in a uniform electric field of 440 N/C. What is the maximum possible electric flux through the surface?
Explain the term 'resistivity' and write its S. I . unit. Derive the expression for the resistivity of a conductor in terms of number density of free electrons and relaxation time.
AC Output Resistance in Common Emitter Configuration Ratio of change in collector-emitter voltage (?V CE ) to the change in collector current (?I C ) at constant base curren
Why is the Kinetic energy of the system minimum in the frame of the center of mass for any number of particles solution) The kinetic energy of any entity depends on the reference
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