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A turbine fan in a jet engine has a moment of inertia of 2.5 kgm^2 about its axis of rotation. As it is starting up, the angular speed is w = (40 rad/s^3)t^2 Find the fan's angular momentum and the net torque acting on the fan as functions of time.
A woman is 1.7 m tall and has a mass of 51 kg. She moves past an observer with the direction of the motion parallel to her height. The observer measures her relativistic momentum to have a magnitude of 1.8 x 1012 kg·m/s. What does the observer measur..
A long solenoid has a diameter of 12.2 cm. When a current i exists in its windings, a uniform magnetic field of magnitude B = 22.7 mT is produced in its interior. Calculate the magnitude of the induced electric field
A train at a constant 75 km/h moves east for 48 min, then in a direction 61.0° east of due north for 11min, and then west for 67 min.
A team of tornado-chasing meteorology graduate students is out in search of tornados. They drive directly toward a tornado warning siren at 25.5 m/s
A block with mass m = 4 kg is sinking with constant acceleration aT = 1.9 m/s2 into the ground. The acceleration due to gravity is g = 9.81 m/s2. In what direction is the normal force
A 4lb block and a 13lb block, connected by a string slide down a 30 degree inclined plane. The coefficient of kinetic friction between the first block mentioned is 0.10; between the second block and the plane it is 0.20. Find the tension(in pounds) i..
jamie is playing tennis. a 0.057kg ball is coming towards her at a velocity of -14 ms. after she hits it in the exact
Find the capacitance of a parallel plate capacitor having plates of area 1.00 m2 that are separated by 0.400 mm of Teflon
A small pistol fire a 1.5g bullet at 1000 m/s. The bullet strikes a 200g wooden block resting on a horizontal frictionlessl surface, What is the speed of the bullet &block system after the bullet had been embedded in the block
A daredevil decides to jump a canyon. Its walls are equally high and 12 m apart. What minimum speed must he have in order to clear the canyon
A student sits on a rotating stool holding two 3.6-kg objects. When his arms are extended horizontally, Find the new angular speed of the student
if an inductor has a change of current 0.418 A to 0.948 and has an inductance of 1.324, what is the change in energy that the inductor is storing
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