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A 1330 N uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end. A W = 1870 N crate hangs from the far end of the beam. Calculate the magnitude of the tension in the wire.
For the real or imaginary nucleus of 85X210, find the net electrical charge of the nucleus, the approximate radius of the nucleus, and the nuclear density
A charge of -5.0 nC is uniformly distributed around a ring of radius 1.5 m that lies in the yz plane with its center at the origin, Calculate the work done in moving the point charge to the origin
a crane drops a 1.0 kg steel ball onto a steel plate. the ball's speed just before impact is 2.0 m/s. what is the bounce back speed right after the impact
The pressure in ideal gas is cut in half slowly, while being kept in a container with rigid walls. In the process, 265 kJ of heat left the gas (a) how much work was done during the process. (b) what was the change in internal energy of the gas dur..
Three resistors, 19 ?, 60 ?, and 100 ?, are connected in series, and a 0.45-A current passes through them. find the potential difference across this equivalent resistance
a particle with charge -6.24 times 10-6 coulombs is released at rest in a region of constant uniform electric field.
If a supersonic jet traveling at Mach 3 atan altitude of 20 000 m is directly overhead at time=0, Where will the plane be when it is finally heard
a uniform ladder 10.0 m long is leaning against a frictionless wall at an angle of 60.0deg above the horizontal. the
Some tropical gyrinid beetles (whirligig beetles) are colored byoptical interference that is due to scales whose alignment forms adiffraction grating (which uses scattered instead of transmitted light). If the incident light is perpendicular on th..
assume two cans of differently coloured paint at the same temperature can be mixed together adiabatically. the second law of thermodynamics is simply not relevant to this situation
A silicon sample is doped with phosphorus at 1.17 parts per 1.00*10^6, Calculate the number of free (conduction) electrons per unit volume of the doped silicon in conduction electrons per cm^3
One end of a copper rod is in thermal contact with a hot reservoir at 995 K, Find the entropy change of cooler reservoir
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