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A uniform disk of radius R and mass M is mounted on an axle supported in fixed frictionless bearings. Alight cord is wrapped around the rim of the wheel and a steady downward pull T is exerted on the cord.
(a) Find the angular acceleration of the wheel and the tangencial acceleration of a point on the rim. ( first part, just write the equations),
(b) then if the mass of disk is taken to be M = 0.50 slug, its radius is R = 0.40 ft , and the force is T = 2.0 lb, find the angular acceleration and tangential acceleration.
q1. a 61 kg speed skater with the velocity of 16 ms comes into a curve of 18 m radius. how much friction should be
What is the rms current in a series RC circuit if = 3.2 kOhm, C = 0.8 microfarads (uF) , and the rms applied voltage is 130V at 79Hz? What is the power dissipated by the circuit
Take the mass of the sun to be m_s = 1.99×1030 {rm kg}, gravitational constant to be G = 6.67×10-11 {rm N} cdot {rm m^2/kg^2}, and an acceleration due to gravity at the earth's surface to be g = 9.810 {rm m/s^2}.
A parallel-plate capacitor is constructed using a dielectric material whose dielectric constant is 2.70, Find the minimum area of the capacitor plates
You find an unlabeled box of fine needles, and want to determine how thick they are. A standard ruler won't do the job, since all you can tell is that each needle is less than a millimeter thick.
A 59 g ball attached to a spring with spring constant 2.9 N/m oscillates horizontally on a frictionless table. Its velocity is 15.4 cm/s when x=-4.79 cm. What is the ball's maximum acceleration
What is the little distance between the speakers for which the interference of the sound waves is destructive.
In a certain reference frame, a particle with momentum of 7 MeV/c and a total energy of 10 MeV. What is the relative speed of the two reference frames
A wall in a house contains a single window. The window consists of a single pane of glass whose area is 0.10 m2, what is the percentage lost by the window
q 1- how much pressure would be necessary to compress a quantity of mercury by 0.015 percent?2- two metal plates are
A long cylindrical conductor is placed in an initially (i.e., before the cylinder is present)uniform electric field which is perpendicular to the axis of the cylinder. Find the electrical potential outside of the cylinder
A 700 kg piston is initially held in place by a removable latch above a vertical cylinder. The cylinder has an area of 0.1 m^2; the volume of the gas within the cylinder is initially 0.1 m^3 at a pressure of 10 bar.
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