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Two disks of the same thickness and same material are attached to a shaft as shown. The 3-kg disk A has a radius rA = 100 mm, and disk B has a radius rB = 125 mm. Knowing that the angular velocity of the system is to be increased from 200 rpm to 800 rpm during a 3-s interval, determine the magnitude of the couple M that must be applied to disk A.
Assume some dog tags create a sound with a frequency of 1118 Hz at rest. You place these dog tags on a greyhound dog. The dog runs towards you and moves with a speed of 13.7 m/s with her tags clanging together.
An electric motor rotating a workshop grinding wheel at a rate of 124 rev/min is switched off. Find through how many revolutions does the wheel turn before it finally comes to rest
Assume a black hole were to suck up a massive amount of surrounding oxygen and hydrogen. Would this ignite inside the black hole and turn it back into a star?
What is the (a) magnitude and (b) angle (measured relative to the positive direction of the x axis) of the asteroid's acceleration.
Water flows in a vertical pipe of 0.15 m diameter at a rate of 0.25 m3/s , and has a pressure of 250 kPa at an elevation of 25 m. Determine the velocity head and pressure head at elevations of 20 m and 50 m.
A clown is using a concave makeup mirror to get ready for a showand is 27.9 cm in front of the mirror. The image is 66.1cm behind the mirror. Calculate the focal length of the mirror.
A loop of wire in the shape of a rectangle rotates with a frequency of 162 rotation per minute in an applied magnetic field of magnitude 3 T, Find the maximum current through the bulb
A 2.0-kg mass moving at 5.0 m/s suddenly collides head-on with a 3.0-kg mass at rest. What is the speed of the masses just after the collision
A system of n particles move under the influence of interaction forces derived from potential terms depending only upon the scalar distances between particles. what is the new hamiltonian
We have a parallel plate capacitor with two plates containing charges +Q and -Q a distance d = 2.00 cm apart. We release a proton from rest at point A, just above the lower plate. At point B, just before the proton strikes the upper plate, the pro..
Write the general solution of the electric potential due to the charge distribution?
A same-sex couple holding hands or kissing in public may receive disapproving looks or even abusive comments from other people. This is an example of:
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