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As seen from above, a playground carousel is rotating counterclockwise about its center on frictionless bearings. A person standing still on the ground grabs onto one of the bars on the carousel very close to its outer edge and climbs aboard. Thus, this person begins with an angular speed of zero and ends up with nonzero angular speed, which means that he underwent counterclockwise angular acceleration. The carousel has a radius of 1.50 m, an initial angular speed of 3.14 rad/s, and a moment of inertia of125 kgm2. The mass of the person is 48 kg. Find the final angular speed of the carousel after the person climbs aboard
current gain equations in 3 configurations.
Which one of the following pairs is not correctly matched: (1) Rutherford-Proton (2) J.J. Thomsom-Electron (3) J.H. Chadwick-Neutron (4) Bohr-Isotope Ans:(4)Bohr-Is
Inertia on a bicycle Get your bicycle going and then apply the brakes rapidly. View the tendency of your body to stay in motion and pitch you over the handlebars. This is the r
Describe binding energy. How does binding energy per nucleon vary with mass number? What is it significance.
Electrons are emitted from a photosensitive surface when it is illuminated by green light but electron emission does not take place by yellow light. Will the electrons be emitted w
michelson interferometer principle
the loop shown at right, with
Describe the numerical aperture in the optical fibre. Numerical Aperture: The numerical aperture is described as the sine of the acceptance angle. Therefore, Numerical
A student sits on a stool holding a 5.0-kg dumbbell in both hands. He extends his arms such that each dumbbell is 0.60 m from the axis of rotation. The student's moment of
In forced oscillation of a particle, the amplitude is maximum for a frequency ω1 of the force while the energy is maximum for a frequency ω2 of the force, then what is relations
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