Axis of rotation
How fast (in rpm) must a centrifuge rotate if a particle 8.06 cm from the axis of rotation is to experience an acceleration of 79000 g?
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A small boat is moving at a velocity of 3.35m/s when it is accelerated by a river current perpendicular to the initial direction of mmotion. If the current acceleration is 0.750m/s^2, what will the new velocity of the boat be after 33.5s?
Disregarding friction, how much faster would the ball travel if the cannon were mounted rigidly and all other parameters remained the same?
How close to the side walk can the flower pot fall before it is too late for a warning shouted from the balcony to reach the man in time? Assume that the man below requires 0.353 s to respond to the warning, and the velocity of sound in air to be
Use the Lagrangian approach to find the angular frequency of small oscillations about the top position. Note the moment of inertia of the cube I = 2mb2/3 and for the small angle approximation: sin θ ≈ θ and cos θ ≈ 1
A length of organ pipe is closed at one end. If the speed of sound is 344 m/s, what length of pipe is needed to obtain a fundamental frequency of 68 Hz?
A swimming pool has dimensions 28.0 m 7.0 m and a flat bottom. The pool is filled to a depth of 1.90 m with fresh water. What is the force exerted by the water on the bottom?
A transformer operating from 61 V (rms supplies a 16.1 V lighting system for a garden. Eight lights, each rated 62 W, are installed parallel. Find the equivalent resistance of the system.
A coil can be considered to be a resistance of 120 ohms and an inductance of 0.5 H in series. The coil is connected across a 180 V rms, 75 Hz line. Find the power.
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