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A sphere of mass m and radius r is on a smooth fixed inclined plane in equilibrium, if now the sphere is displaced by a small distance along the plane , what will be angular frequency of the resulting SHM (k=4M/3)( angle of inclination =30 degree)
Ans) 2pie(3/4)1/2
Free Expansion process: In free expansion of gas, the gases enlarge in vacuum. Thus, work done Δw=0 In free expansion if state changes from 1 → 2 only the initial and final s
Cart and The Brick Collisions among objects are governed through laws of momentum and energy. While a collision occurs in an isolated system, a total momentum of the system of
What is the echo of the launched pulse? Any discontinuity into the medium of propagation of an ultrasonic pulse provides rise to back-reflection that travels back to the input
Electric field (intensity) is a vector number. Electric field because of a positive particle is always away from the charge and that because of a negative charge is always toward
Illustrate the demerits of ultrasonic magnetostriction method. Limitations of ultrasonic magnetostriction method: a. This can produce frequencies up to 3 MHz simply. b.
One scientist wants to put an 100kg experimental package in orbit around the Earth. The cost of deployment depends on the amount of more extra energy it takes to get it into the r
Calculate the specific heat of a metal from the following data. A container made of the metal has a mass of 3.2 kg and contains 20 kg of water. A1.7 kg piece of the metal initially
A radioactive substance has a half life of 1 min. If one nuclei decays now , when will be next decay????
Assumptions: Kinetic Energy=KE, Potential Energy=PE m=mass of the skateboarder=55 kg, Velocity v=1.80m/s So ,Initial Energy(KE) of the skateboarder=mv 2 /2 = 0.5* 55 * (1.8)^
Doppler effect (C.J. Doppler) Waves emitted through a moving object as attained by an observer will be blueshifted (compressed) if approaching, redshifted (elongated) if reced
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