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Question1
A space platform in form of a thin circular disc of radius a and mass m (flying saucer) is initially rotating steadily with angular velocity ω about its symmetry axis. A meteorite strikes the platform at the edge, imparting an impulse P to the platform. The direction of P is parallel to the axis of platform, and magnitude of Pis equal to maω/4. Find out the resulting values of the processional rate Ω, the wobble rate φ, and an angle α between symmetry axis and the new axis of rotation.
Question2
A jet is circling an airport control tower at a distance of 18.0 km. An observer in tower watches the jet cross in front of the moon. As seen from the tower, the moon subtends an angle of 9.25x10-3 radians. Find out the distance travelled (in meters) by the jet as observer watches the nose of the jet cross from one side of the moon to the other.
An object is 12.0 cm from the surface of a spherical Christmas tree ornament that is 8.00 cm in diameter. What is the magnification of the image
A series RCL circuit driven at angular frequency %u03C9 = 505 rad/s has a capacitive reactance XC = 851 %u03A9, What is the total impedance
What was the take-off speed? If this speed were increased by just 5.0%, explain how much longer would the jump be?
A man pushes on a piano with mass 180 {rm kg} so that it slides at constant velocity down a ramp that is inclined at 20.0^circ above horizontal floor. Overlook any friction acting on the piano.
question1a truck is carrying a steel beam of length 17.0 m on a freeway. an accident causes a beam to be dumped off the
Strictly speaking, as more and more skyscrapers are being built on surface of earth, does the day tend to become longer or shorter.
A railroad car of mass 2.40 multiply.gif 104 kg is moving with a speed of 3.82 m/s. find the speed of the four cars after the collision
A slab of a thermal insulator with a cross-sectional area of 120cm2 is 3.00cm thick
Two equally charged insulating balls each weigh 0.14 g and hang from a common point by identical threads 30 cm long. The balls repel each other so that the separation between their centers is 6.4 cm. What is the magnitude of the charge on each bal..
A Ferris wheel with a radius of 14.0 m rotates at a constant rate, completing one revolution in 30.0 s. What is the apparent weight of a 60 passenger when she is at the bottom of the wheel.
A 950-kg car traveling west at 15.0 m/s collides with a 750-kg car traveling north at 20.0 m/s. The cars stick together. Find the speed of the wreckage just after the collision
Two additional charges are fixed on the circle of the compass (radius = 0.125 m). The charges on the circle are -3.90 µC at the position due north and +5.00 µC at the position due east.
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