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Three identical thin rods, each of length L and mass m, are welded perpendicular to one another as shown in the figure below. The assembly is rotated about an axis that passes through the end of one rod and is parallel to another. Determine the moment of inertia of this structure about this axis. (Use any variable or symbol stated above as necessary.)
A neutron star is composed of neutrons and has a densitythat is approximately the same as that of a nucleus. What is the radius of a neutron star whose mass is one-fifth of the mass of the sun
The resistance of a conductor is 19.2 ohms at 1.50 degress C and 25.0 ohms 91.0 degress C. What is the temperature coefficient of the resistance
White light (400 - 700 ) is incident on a 610 diffraction grating. What is the width of the first-order rainbow on a screen 2.3 behind the grating
Consider a chain with length 0.9 m and mass per unit length 0.6 kg/m. Suppose it is initially suspended above a table so that the lower, What is the force when one-half of the chain lies on the table
The lines in a grating are uniformly spaced at 1520nm. Analyse the angular separation of the second order bright fringes between light of wavelength 603nm and 615.4 nm. Reply in units of mrad.
A parallel beam of light with an energy flux S of 10 W/cm2 falls for 1 hour on a perfectly reflecting plane mirror of 1.0 cm2 area. what force acts on the mirror
a pirate is swimming 4.85 feet under water as he approaches a rival ship. when he is 30.5 feet from the ship he looks
A car is normally capable of an acceleration of 3m/s2. If it is towing a trailer with half as much mass asthe car itself, what acceleration can it achieve?
an a.c. generator which produces an rms voltage of 120 v at 60 hz is connected to a 57 microf capacitor. there are no
Two metal balls are hung from strings. The first ball, 0.14 kg, is pulled to the side and released so that it strikes the second ball with a speed of 1.98 m/s. What is the mass of the second ball
During a golf drive, the angular velocity of the driver is 20 rad/s just before impact with the golf ball. If the distance from the club head to the axis of rotation is 2.0 m
find the potential energy at each location below. How far from the point of the drop will the rock hit the ground.
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