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A thin rod has a length of 0.25 meter and rotates in a circle on a frictionless tabletop. The axis is perpendicular to the length of the rod at one of its ends. The rod has an angular velocity of 0.35 rad/s and a moment of inertia of 9.00 x 10-4 kg•m2. A bug standing on the axis decides to crawl out to the other end of the rod. When the bug (mass = 4.2 x 10-3 kilogram) gets where it's going, evaluate what is the angular velocity of the rod?
A 76 g, 40-{rm cm}-long rod hangs vertically on a frictionless, horizontal axle passing through its center. A 10 g ball of clay travelling horizontally at 2.70 m/s hits and sticks to the very bottom tip of the rod. To what maximum angle, measured fro..
A 23 kg child goes down a straight slide inclined 38 above horizontal. How large is the normal force of the slide on the child
A crate of mass 45.0 kg is being transported on the flatbed of a pickup truck. The coefficient of static friction between the crate, What is the acceleration of the crate relative to the ground
A spacecraft is in empty space. It carries on board a gyroscope with a moment of inertia of Ig = 24.0 kg · m2 about the axis of the gyroscope. The moment of inertia of the spacecraft around the same axis is Is = 5.00 105 kg· m2.
A boxer receives a horizontal blow to the head that topples him over. The force, of magnitude 1.06 x 10^3 N, is applied for 1.1 x 10^-2 s at a point 1.82 m above the floor. Find the boxer's final angular velocity
A 20 kg. projectile is fired at an angle of 60 degrees abovehorizontal with a speed of 80 m/s. how much energy is released during explosion
In Rutherford’sfamous scattering experiment that led to the planetary model of theatom, alpha particles (having a charge of + 2e and a mass of 6.64 x10-27 kg) were fired toward a gold nucleus with charge of + 79e. Thealpha particle, initially very..
question a radiation detector indicates the decay activity of a radioactive material. which would have a higher reading
The height of a helicopter above the ground is given by h = 3.10t3, where h is in meters and t is in seconds. How long after its release does the mailbag reach the ground
A diffraction grating with 220 lines per mm is used in an experiment to study the visible spectrum of a gas discharge tube. At what angle will the second order peak occur
A man applies a force of F = 3.00 102 N at an angle of 60.0° to a door, x = 1.90 m from the hinges. Find the torque on the door
A 1500 kg elevator starts from rest and moves upward with constant acceleration for 4.0 s until it reaches its operating speed of 2.0 m/s. Calculate the power required by the elevator motor while the elevator is operating at its operating speed
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