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A flat uniform circular disk (r= 2.00m, m=1.00*102kg) is initally stationary. The disk is free to rotate in thehorizontal plane about a frictionless axis perpendicular to thecenter of the disk. A 40.0kg person, standing 1.25 m from theaxis, begins to run on the disk in a circular path and has atangential speed of 2.00m/s relative to the ground. Find the resulting angular speed of the disk (in rad/s) and describe thedirection of rotation.
determine the value of IG. The support at B does not move while the measurement is taken. For the calculation, the horizontal location of G should be determined.
Kras, Inc., was organized and authorized to issue 50,000 shares of $100 par value, 9 percent [referred stock and 50,000 a shares of no-par, $5 stated value common stock on July 1, 2011.
A 13g rifle bullet traveling 150m/s buries itself in a 3.7 kg pendulum hanging on a 2.9 m long string, which makes the pendulum swing upward in an arc. Resolve the horizontal component of the pendulum's maximum displacement.
A container of volume 0.52 m3 contains 3.1 mol of argon gas at 30°C. Assuming that argon behaves as an idealgas, find the total internal energy of this gas
A 300 DC power supply has fully charged a 15 mF capacitor. The charged capacitor is connected to a 20 mH inductor. find the magnetic energy in the inductor
A positron is an antimatter particle identical in mass to an electron but with a positive charge, Calculate the energies of the three lowest states of positronium
A horizontal uniform bar of mass 2.9kg and length 3.0 m is hung horizontally on two vertical strings. String 1 is attached to the end of the bar, and string 2 is attached the distance 0.74 m from the other end.
A 200 gram metal block absorbs 1500 joules of heat, and its temperature changes by 150 degrees Celsius. What is the specific heat capacity of this metal
A bullet leaves the muzzle of a gun at a speed of 400m/s. The length of the gun barrel is 0.50m. Assuming the bullet was uniformly accelerated .
A piece of radium has an activity of 18 mCi. What is the mass of the radium
A large asteroid of mass 71700 kg is at rest far away from any planets or stars. What is the speed of the second asteroid
Some human nerve cells have a long, thin cylindrical cable (the axon) from their inputs to their outputs. Determine the resistance of the fluid in this axon
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