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A steel rod (ρ = 7860 kg/m3) has a length of2.40 m. It is bolted at both ends between immobile supports.Initially there is no tension in the rod, because the rod just fitsbetween the supports. Find the tension that develops when the rodloses 3230 J of heat.
An electron (mass=9.1*10^-31 kg) is bound in a finite 1D square well w/ a width of 1.0 nm and a depth of 0.30 eV. How many bound states are there? (Please provide steps and not just an answer).
an inductor having a reactance of 25 Ohms and resistance R gives off heat at the rate of 16.0 watts when it carries a current 0.500 A (rms) what is the impedance of the inductor
block A which is 19.3 N is placed on a frictionless ramp that is inclined at 15 degrees. Block B which is 15.7 N is placed on top of the block, estimate the tension in the cord
a cylinder with a piston contains 0.150 mol of nitrogen at 1.80 105 pa and 300 k. the nitrogen may be treated as an
A mass-spring system oscillates with period of 0.23 sec. The spring's spring constant k = 450 N/m. What mass is attached to the spring
A glass plate (n=1.62) is coated with a thin, transparent film (n=1.27). Light reflected at normal incidence is observed as the wavelength is varied continuously. Find the thickness of the film
A compressed-air vessel has a volume of 10 ft^3. Cooling coils hold its temperature constant at 68 oF. The pressure now in the vessel is 100 psia. Air is flowing in at the rate of 10 lbm/h. How fast is the pressure increasing?
A 1.00 kg beaker containing 2.00 kg of oil (density=900kg/m^3 rests on a scale, Find the equilibrium readings of both scales
In a physics demonstration, two rubber balls are dropped down a tube towards the ground,with the lighter ball behind, How high does the light ball rise after the two collisions
A uniform magnetic field B is perpendicular to the plane of rotation. What is the potential difference between the ends of the bar
As an auto mechanic, you need to determine the EMF and internal resistance of an old battery. What are the battery\'s EMF and internal resistance
Two test charges are located in the x-y plane. If q1 = -2.30 nC and is located at x = 0.00 m, y = 1.040 m and the second test charge has magnitude of q2 = 4.00 nC and is located at x = 1.20 m, y = 0.750 m, calculate the x and y components
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