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A steel ring of 250mm diameter has a width of 50mm nada radial thickness of 5mm. It is split to leave a narrow gap 5mm wide normal to the plane of the ring. Assuming the radial thickness to be small compared with the radius of ring curvature, find the tangential force that must be applied to the edges of the gap to just close it. What would be the maximum stress in the ring under the action of this force? E=200GPa
A gaseous mixture containing 50 mol% hydrogen and 50 mol% acetaldehyde (C2H4O) is initially contained in a rigid container at a total pressure of 760 mmHg absolute. The formation of ethanol occurs according to C2H4O + H2 C2H6O.
Two balanced Y-connected loads in parallel, one drawing 15 kW at 0.6 power factor lagging and the other drawing 10 kVA at 0.8 power factor leading, are supplied by a balanced, three-phase, 480-volt source.
Electrical power generation and transmission requires electrical companies to charge tariff to cover costs and make profit. Discuss capital and running charges.
A rod on the surface of Jupiter's moon Callisto has a volume of 0.3 cubic meters. Determine the weight of the rod in units of pounds-force. The desnity is 4,700 kilograms per cubic meter. Gravitational acceleration on Calisto is 1.25 meters per se..
what is the difference between the words "rated as 3mA" , and "biased at 5mA" , when talking about a diode what is teh difference between saying " the diode is rated as a 3mA device", and " The diode is biased at a current of 0.5mA"
Shannon's Law describes the relationship between bandwidth, signal power, and noise in determining the theoretical maximum Capacity in bits per second of a particular communications channel.
The Schussing skier is on 25° slope. His mass is 80 Kg. The Kinetic coefficient of friction between his skis and the snow is μs = 0.08 . His velocity is 9 m/s. a) What is his acceleration in the direction parallel to the slope
find the force between a charged circular loop of radius b and uniform charge density l and a point charge Q located on the loop axis at a distance h from the plane of the loop. what is the force when h>>b, and when h=0 plot the force as a functio..
120V, 60 Hz source is connected to a distribution line whose resistance, and inductive reactance is 0.001Ohm, j0.002 Ohm, respectively. Single phase, 100HP, 120V, 0.85 pf. motor; and 100Kw, 120V heater are connected in parallel.
the donor energy level is approximately 0.1 ev below the conduction band. the approximate value is calculated from the binding energy equation from hydrogen. derive the binding or ionization energy which is equal to the total energy.
Capacity, Data and Transfer Rates, Access Time of Disk Drive, A hard disk drive has 10 disks and 18 surfaces available for recording. Each surface is composed of 200 concentric tracks and the disks rotate at 7200 r.p.m.
Given an 16-bit A/D converter and a ± 5 volt incoming signal. Suppose you want a minimum count on the A/DC toequal -5 V and a maximum count to equal +5V. a) How many states can this A/DC take on
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