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A ring is fitted loosely (with no friction) around a long, smooth rod of length L = 0.901 m. The rod is fixed at one end, and the other end is spun in a horizontal circle at a constant angular velocity of ? = 4.29 rad/s. The ring has zero radial velocity at its initial position, a distance of r0 = 0.213 m from the fixed end. Determine the radial velocity of the ring as it reaches the moving end of the rod.
Some sliding rocks approach the base of a hill with a speed of 15.0m/s . The hill rises at 42.0? above the horizontal, Find the acceleration of the rocks as they slide up the hill
Find the position of an object in front of a screen to obtain an image of size twice larger than its original size on the screen.
A student is reading a lecture written on a blackboard. The lenses in her eyes have a refractive power of 54.56 diopters, How far is the blackboard from her eyes
A uniform horizontal beam has a mass of 241 kg and is 10.5 meters long. The beam also carries the following three loads: Load A: 4715 N, 1.26 meters from left end, What are the forces supporting the two ends of the beam
A simple harmonic oscillator takes 26 seconds to undergo 22 complete oscillations. What is the period of the oscillator
An engine absorbs 3,450 J of heat energy each cycle and expels 1,240 J. how much work does it do in one cycle
An unstrained horizontal spring has a length of 0.37 m and a spring constant of 340 N/m. Two small charged objects are attached to this spring, one at each end. The charges on the objects have equal magnitudes.
A four-turn circular wire coil of radius 0.565 m lies in a plane perpendicular to a uniform magnetic field of magnitude 0.340 T. what is the average induced emf in the wire during this time
A small ball of mass, m = 8.60 × 10-9 g, has acquired an excess charge. The ball is then placed between two parallel plates spaced x = 3.45 mm, How many electrons did the ball gain or lose
Two forces act on a 5kg object. One force is 40 N and directed east. the other force is directed west. what is the magnitude and direction of the second force
q. a paratrooper pilot fell 360 m after jumping without his parachute opening. he landed in a snow bank creating a
A gas, while expanding under isobaric conditions, does 500 J of work. The pressure of the gas is 1.6 105 Pa, and its initial volume is 1.60 10-3 m3
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