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For a rigid axisymmetric satellite, the mass moment of inertia about its long axis is 1000 kg$m2, and the moment of inertia about transverse axes through the center of mass is 5000 kg$m2. It is initially spinning about the minor principal body axis in torque-free motion at us ¼ 0.1 rad/s, with the angular velocity lined up with the angular momentum vector H0. A pair of thrusters exert an external impulsive torque on the satellite, causing an instantaneous change DH of angular momentum in the direction normal to H0, so that the new angular momentum is H1, at an angle of 20o to H0, as shown in the figure. How long does it take the satellite to precess ("cone") through an angle of 180o around H1?
A variable capacitor used in an RLC circuit produces a resonant frequency of 4.50 MHz when its capacitance is set to 14.9 pF. What will the resonant frequency be when the capacitance is increased to 335 pF
A positively charged oil drop of mass is injected into a region of uniform electric field between two oppositely charged, horizontally oriented plates spaced 16 cm apart. what is the magnitude of the charge on the drop
A 2.0m length of metal wire is connected to a 1.5 V battery, and a current of 5.0mA flows through it. What is the diameter of the wire
A recording engineer works in a soundproofed room that is38.0 dB quieter than the outside. find what is the intensity outside
Monochromatic light from a distant source is incident on a slit0.700 mm wide. On a screen1.90 m away, the distance from the central maximum of the diffraction pattern to the first minimum is measured to be 1.15 mm. Compute the wavelength of the light..
Two solenoids are part of the spark coil of an automobile. When the current in one solenoid falls from6.8 A to zero in 2.5 ms, an emf of24 kV is induced in the previous solenoid. What is the mutual inductance M of the solenoids?
A human wearing cloths has about 1.0 m^2 of exposed skin. How much power does a typical human loose due to radiation
A 1000kg car traveling at a speed of 40m/s skids to a halt on wet concrete where the friction force is 6000N
It is desired that 8.5C of charge be stored on each plate of a 4.5 -F capacitor. What potential difference is needed between the plates?
A square conducting loop is in a region of uniform, constant magnetic field. Can the loop be rotated about an axis along one side and no emf be induced in the loop? Discuss, in terms of the orientation of the rotation axis relative to the magnetic..
A point source of light is located at the bottom of a steel tank, and an opaque circular card of radius 5.7 cm is placed over it. What is the index of refraction of the fluid
A hoop and a disk, both of 0.58- m radius and 3.0- kgmass, are released from the top of an inclined plane 2.5 m high and8.8 m long. What is the speed of each when it reaches the bottom?Assume that they both roll without slipping.
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