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A 0.21-m-long, 0.15 kilogram thin rigid rod has a 0.22 kilogram mass stuck on one of its ends and a 0.080 kilogram mass stuck on the other end. The rod rotates at1.7 rad/s through its physical center without friction. Find the magnitude of the angular momentum of the system taking the center of the rod as the origin? Treat the masses on the ends as point masses.
Two 330 kg (733 lb) masses are separated by a distance of 4 m. Using Newton's law of gravitation, find the magnitude of the gravitational force exerted by one mass on the other
The resonant frequency of a series RCL circuit is 13.8 kHz. The inductance and capacitance of the circuit are each quadrupled. What is the new resonant frequency
The change in specific enthalpy during the melting of ice at 0 degrees C and 1.01 X 10^5 Pa is ?h= 333.39 kj/kg. find the change in entropy of reservoir and universe
a 130-m-wide river flows due east at a uniform speed of 4.3 ms. a boat with a speed of 7.3 ms relative to the water
The motor in a refrigerator has a power of 300 W. If the freezing compartment is at267 K and the outside air is at 300 K,and assuming the efficiency of a Carnot refrigerator, what is the maximum amount of energy that can be extracted as heat from the..
q1. suppose a uniformly charged with a linear charge density wire starts at point 0 and rises vertically along the
An electron with an initial speed of 4.00×105m/sis brought to rest by an electric field, What was the initial kinetic energy of the electron, in electron volts
two point charges lie along the y axis. a charge of q1 -14.0 microc is at y 5.0 m and a charge of q2 -2.0 microc is
A particular radioactive source produces 175 mrad of 1 MeV gamma rays per hour at a distance of 1.0 meter. Find how long could a person stand at this distance before accumulating an intolerable dose of 1 rem
A reflecting, spherical Christmas tree ornament has a diameter of 6.0 cm. Where is the image located
A lead ball is dropped into a lake from a diving board5.50 m above the water. What is the average velocity of the ball
Two Stars of equal mass revolve in a circular orbit about a center of mass midway between them. Find the mass of each star
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