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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
what is the significne of electric field?
PN-Junction Diode: Introduction: An electronic device which is made by linking together P-type semi-conductor and N-type semiconductor is known as p-n junction diode or a
A sample of argon of mass 10.4 g occupies 2100 ml at 30 o C . (i) Calculate the work done by the gas when it expands isothermally against a constant external pressure of 3
What is neutral buoyancy? Buoyancy is the net upward force experienced by an object submersed in a fluid. Pascal's principle dictates that fluid pressure on an object enhances
In the circuit shown in Figure, the slider S is at the half-way point. (a) Calculate the p.d. across and the current flowing in the 400 Ω load resistor. (b) Is the circuit a
2. The earth’s rotation about its axis changes measurably over time; see http://en.wikipedia.org/wiki/Leap_second and http://en.wikipedia.org/wiki/Tidal_acceleration for detai
Although conduction does occur in liquids and gases also, heat is transmitting in these media mostly by convection. In that phenomenon, the real motion of the material is responsib
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EXplain fraunhofer diffraction due to a single slit and deduce the position of maxima and minima and find their relative intensities
Ask question #Minimum 100 wora cannon of mass 5m ( including a shell of mass m )is at rest on a smooth horizontal ground fires the shell with its barrel at an angle A with the hori
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