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A wheel with a moment of inertia of 5.5 kg•m2 is rotating with an angular speed of 54 rad/s. A second wheel with a moment of inertia of 2.25kg•m2, initially at rest, is suddenly coupled to the same shaft. What is the angular speed of the resulting combination? (Hint: think about momentum, before, and then after)
One string of a guitar is 75 cm long. The mass of the string is 8g. What tension must you tune the string to if it is to have a second harmonic frequency of 440 Hz?
you are given vectors a? 5.1 i? 6.6 j and b? - 3.6 i 7.1 j. a third vector c? lies in the xy-plane. vector c? is
With what minimum speed must you toss a 180g ball straight up to hit the 15m -high roof of the gymnasium if you release the ball 1.1m above the ground
Evaluate (a) the acceleration of each object, (b) the tension in the string, and (c) the coefficient of kinetic friction between m2 and the incline.
A 1.2 m long steel rod with a diameter of 0.50cm hangs vertically from the ceiling. An auto engine weighing 4.7kN is hung from the rod. By how much does the rod stretch
This is a multiple step problem in which you must derive the variables needed (mass and distance under constant acceleration) in step one and then apply those values to the final solution of the problem in step two, that is calculate the work done..
We've seen that fish can control their buoyancy through the use of a swim bladder, a gas-filled organ inside the body. What will the volume of the swim bladder be if the fish ascends to a 42ft depth without changing the quantity of gas
A small rocket to gather weather data is launched straight up. few seconds into the flight, its velocity is 110 and it is accelerating at 17 . At this instant, the rocket's mass is 50 and it is losing mass at the rate of 0.45 as it burns fuel.
A spherical bowling ball with mass m = 4 kg and radius R = 0.108 m is thrown down the lane with an initial speed of v = 8.8 m/s. How long does it take the bowling ball to begin rolling without slipping
A 10 ball of clay traveling east at 9 collides and sticks together with a 40 ball of clay traveling north at 6.5. What is the speed of the ball of clay.
A horizontal wire of length 0.58 m, carrying a current of 7.2 A, is placed in a uniform external magnetic field, Determine the magnitude of the external magnetic field
Determine the individual gas-film coefficient, kG; the individual liquid-film coefficient, kL; the interfacial gas concentration, pAL;
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