Physics

Physics, 30.09.2019 00:00, victoriagonzale6

What simple machine can be described as a shaft that is attached to the center of a wheel?

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Physics, 05.07.2019 00:20, skyozymy

The mass moment of inertia (mmi) of a flywheel (large disc) attached to the main (c) shaft of a rock crushing machine the machine maintain a continuous crushing force. the designer of the machine has determined that a mmi of 100 kg.m2 is required. the fly wheel is to be made of cast iron with a density of 7210 kg/m2. if the thickness (axial length) of the flywheel is limited to 0.25 m, what is the minimum flywheel radius needed to provide the required mmi? a symbolic solution is required initially. work in base si units state the units for your answer.

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Physics, 05.07.2019 03:20, renaeenriquez2016

Fall 2017 university physics i 7. 15 pts) a wheel in the form of a massive solid disk spins frictionlessly and with constant angular velocity around a shaft of edicine mass. one end of the shaft is unpended from a rigid support by a tout string, as shown in the figure below. the shaft makes a (angle with the string, and the connection between the shaft and string can turn irewly and frictionlessly. the shaft-wheel assembly is observed to rotate (or precess) in the plane perpendicular to the string, with the axis of precession being mirallel to the string. the earths gravity acts downward. in this problem use a circle with a dot in the center to indicate a direction out of the page, and a circle with a cross to indicate into the page. the right-hand-rule should come in handy (no pun (a) the direction in which the wheel spins is shown by the arrow in the figure. draw a vector that represents the direction of the angular momentum associated with the spin and label it l. (b) on the figure, indicate the direction of the torque (about the axis of the string) that is caused by gravity acting on the wheel. label this torque f. () indicate the direction in which the wheel processes around the axis of the string. and label it "precession direction". (d) why doesn't the wheel simply fall down, with the shaft becoming vertical (parallel to the string)? explain in a few sentences. (e) in what direction would you need to apply a force to the center of mass of the wheel, in order to catase the shaft to point slightly downward (i.e., make a larger than 10 angle with respect to the string)? indicate this direction on the figure, and label it f. (note: in this case, the assembly would still precess around the string, but it would be pointed slightly downward.) 7 of 7

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Engineering, 27.09.2019 23:30, brunovillarreal6576

An engine shaft running at 120 rp.m. is required to drive a machine shaft by means of a belt. the pulley on the engine shaft is of 2 m diameter and that of the machine shaft is 1 m diameter. if the belt thickness is 5 mm; determine the speed of the machine shaft, when 1. there is no slip; and 2. there is a slip of 3%

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Physics, 20.11.2019 23:31, CrsvrBryan7852

Acord is wrapped around the rim of a wheel 0.235 m in radius, and a steady pull of 43.0 n is exerted on the cord. the wheel is mounted on frictionless bearings on a horizontal shaft through its center. the moment of inertia of the wheel about this shaft is 5.15 kg⋅m2 compute the angular acceleration of the wheel.

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