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A disk with mass m = 5.4 kg and radius R = 0.47 m hangs from a rope attached to the ceiling. The disk spins on its axis at a distance r = 1.34 m from the rope and at a frequency f = 19.5 rev/s (with a direction shown by the arrow).
1) What is the magnitude of the angular momentum of the spinning disk?
2) What is the torque due to gravity on the disk?
3) What is the period of precession for this gyroscope?
4) What is the direction of the angular momentum of the spinning disk at the instant shown in the picture?
5) What is the direction of the precession of the gyroscope?
A prism is made of glass of unknown RI. A parallel beam of light is incident on a face of the prism. The angle of min deviation is measured to be 40 degree. What is the Refractive Index of the prism
A parallel-plate capacitor with circular plates of radius R is being charged. The change of electric field is given by dE/dt=1.5E12 V/(mS). The field magnitude B for r=5R is 1E-7 T.
A flywheel of mass 189 kg has an effective radius of 0.61 m (assume the mass is concentrated along a circumference located at the effective radius of the flywheel). What is the applied torque on the flywheel
A 2500 kg car rounds a flat curve of radius 75 m at speed of 80 km/h. if the pavement is icy and the force of static friction is 6000 n, what is the maximum speed the car could safely go around the curve
A woman at an airport is towing her 14.0-kg suitcase at constant speed by pulling on a strap at an angle, What is the magnitude of the normal force that the ground exerts on the suitcase
A charge of 5.00 (mew)C is placed at each corner of a square 0.100m on a side. Determine the magnitude and force on each charge
A spring whose stiffness is 1000 N/m has a relaxed length of 0.49 m. what is the change in the potential energy of the spring
A small object begins a free-fall from a height of H = 87.0 m at t0 = 0 s. After %u03C4 = 2.20 s, At what height from the ground will the two objects first meet
A gas contains NO2 molecules at 30 °C. The mass of a N02 molecule is 1.53 · 10-26 kg. What is the average speed of the molecules
A person pulls a toboggan for a distance of 41.7 m along the snow with a rope directed 24.3 ° above the snow, How much work is done on the toboggan by the tension force
An uncharged nonconductive hollow sphere of radius 12.0 cm surrounds a 14.0 µC charge located at the origin of a cartesian coordinate system. A drill with a radius of 1.00 mm is aligned along the z axis, and a hole is drilled in the sphere. Calculate..
A rock is dropped from a tree of height 25 m into a lake (depth 5.0 m) below. What is the total elapsed time
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