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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 new 90.0-V battery with a storage capacity of 2.5 x 10 4 C charges a 6800 μF capacitor with the switch in position A. Then the switch is thrown to position B to discharge th
A UNIFORM ROD OF MASS M, HINGED AT ITS UPPER END, IS RELEASED FROM REST FROM A HORIZONTAL POSITION. WHEN IT PASSES THROUGH THE VERTICAL POSITION FIND THE FORCE ON THE HINGE.
what is physics
Longitudinal Wave A wave is a disturbance of a medium that transports energy by the medium without enduringly transporting matter. Within a wave, particles of the medium are te
the unit of force and length are doubled, the unit of energy will be
what is drain characteristics
Permeability of free space; magnetic constant; mu_0 The ratio of the magnetic flux density in a substance is to the external field strength for vacuum. This is equal to 4 pi x
plz derive a equation to magnetic force between short magnetic dipoles at distance apart?
Q. Tritium has a half life period of 12.5 years. What fraction of the sample will be left over after 25 years? HLP = 12.5 years Number of HLPs in 25 years = 25 / 12.5 =2
A circuit which employs a DIRECT CURRENT source has a branch which contains a capacitor. After the circuit has reached a steady state, what is the magnitude of the current in the c
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