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A uniform disk of radius r = 120 mm is welded at its center to two elastic rods of equal length with fixed ends at A and B. Knowing that the disk rotates through an 8° angle when a 500-mN . m couple is applied to the disk and that it oscillates with a period of 1.3 s when the couple is removed, determine
(a) the mass of the disk,
(b) the period of vibration if one of the rods is removed.
Two V belt pullies form an integral unit and rotate about a fixed axis at O. At a certain instant point A on the belt of the smaller pully has a velocity of Va = 1.5 m/s.and point B on the belt of the larger pully has an acceleration of ab = 45m/..
a assume the maximum shear stress that bone as a material can withstand is tau max 57 mpa prior to failure. determine
A toy rocket engine lifts a mass of 4.5 kg to a height of 15.0 meters. At this height, the rocket is moving at 26.7 m/s. How much work was done by the rocket engine
Suppose a pion is traveling in the positive x-direction, and the magnetic field is in the positive z direction. Was the pion positively or negatively charged
a person of mass 50 kg stands on an accurate scalethat reads force in newtons in an elevatora draw a free body diagram
A typical coal-fired plant generates 1000 MegaWatts of usable power at an overall thermal efficiency of 35%, What is the rate of heat input to the plant
A world champion hammer thrower, rotates at a rate of 3.5 revolutions/sec just prior to releasing the hammer. What was the linear velocity of the hammer at release
Calculate the numerical value of the capacitance of this capacitor after glycerin at 20?C completely fills the volume between the plates
q1. a 3.72 g bullet moving at 290 ms enters and stops in an initially stationary 3.30 kg wooden block on a horizontal
What is the final temperature of the block and water
Pulsed lasers used in science and medicine produce very short bursts of electromagnetic energy. how many wavelengths are found within the laser pulse
A long string of tension T and mass density ÃŽ · is attached to a small sphere of mass m. What is the displacement of the string on the right side of the mass, yt(x,t)
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