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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
A solid substance has a molar volume which is smaller than that of its liquid phase. Which of the following statements regarding the solid-liquid phase transition is/are true?
Define Railway Tanker? A long, cylindrical tank is placed on a carriage that is able to slide without friction on. The mass of the empty tanker is M=180 kg at first the tank is
What is spontaneous emission? Explain in brief. Spontaneous emission: a. This is the process by that a light source as like an atom, molecule, nano-crystal or nucleus into a
write all equationes of projectile motion used in calculation of vertical and horizontal motion
readings of deflection magnetometer
Explain the term poly elastic and give some of example.
working and principle
Illustrate the light emitting diode for fibre optic communication? Light-Emitting Diode (LED) for fibre optic communication: There are two types of LED. They are surface etc
A thin convex lens of focal length 0.1m and a thin concave lens of focal length 0.1m are placed co-axially in contact. What is the total power of the combination?
Chlorine atom differs from chloride ion in the number of: (1) Proton (2) Neutron (3) Electrons (4) Protons and electrons Ans: Electrons
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