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A solid uniform disk of mass M = 8.8 kg and radius R = 21 cm rests with its flat surface on a frictionless table (i.e., the axis of the cylinder is perpendicular to the table.) The diagram shows a top view. A string is wrapped around the rim of the disk and a constant force of F = 113 N is applied to the string. The string does not slip on the rim.a) What is the acceleration of the center of mass?a = ?? m/s2b) What is the angular acceleration about the center of mass?a = ?? rad/s2The next 5 questions refer to a time 1.2 s after the force is first applied. c) How far has the disk moved?d = ?? md) Through what angle has the disk turned?q = ?? rade) What is the translational speed of the disk?v = ?? m/sf) What is the angular velocity about the center of the disk?w = ?? rad/sg) What is the total kinetic energy of the disk?KE = ?? J
A charged sphere of mass 2.5x10^-5 kg and net charge of 6.0x10^-9 C hangs from a silk thread, what is the magnitude of the charge dentist on each plate
At time t= 0, a 2150-kg spacecraft in outer space fires an engine that exerts anincreasing force on it in the +x-direction. What impulse does the engine exert on the spacecraft during the 1.5 s interval starting 2.0 s afte..
Assume all temperatures to be exact, and neglect significant figures for small changes in dimension. An athlete has a large lung capacity, 7.4. how many molecules of air are in the athlete's lungs
Draw a motion diagram for the train. Assume that the train is moving toward the right and starts to slow down at t = 0. The separation of each dot represents an elapsed time of one second.
q1. a thermos contains 175 cm3 of coffee at 85deg c. to cool the coffee you drop two 13-g ice cubes into the thermos.
A railroad flatcar is traveling to the right at a speed of 13.0 m/s relative to an observer standing on the ground. What is the velocity of the motor scooter relative to the flatcar if its velocity relative to the observer on the ground is zero
A loudspeaker of mass 20.0 kg is suspended a distance of h = 2.20m below the ceiling by two cables that make equal angles with the ceiling. What is the tension T in each of the cables
An electron is released from rest at the negative plate of a parallel plate capacitor. The charge per unit area on each plate is ? = 3.00 10-7 C/m2, and the plates are separated by a distance of 2.9 10-2 m. How fast is the electron moving just bef..
A loop of diameter d=12 cm, carrying a current I = 0.40 A is placed inside a magnetic field B=(02.0 T)i + (0.40 T)j. Calculate the potential energy of the loop
You are designing a small coil (called a search coil) to measure magnetic fields. It is to have a diameter of 3.80 cm, How many turns should the coil have
A 11.3 kg object hangs in equilibrium at the end of a rope (taken as mass less), while a wind pushes the object with a 64.9 N horizontal force, Find the tension in the rope and the rope's angle from the vertical
Four equal charges of +4.9×10-6 C are placed on the corners of one face of a cube of edge length 7.0 cm. A charge of -4.9×10-6 C is placed at the center of the cube. What is the magnitude of the force on the charge at the center of the cube?
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