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instead of the perturbation being switched linearly, it was switched on and off exponentially and slowly, the switching off commencing long after the switching on was complete. Calculate the probabilities, long after the perturbation has been extinguished, of the 2pz-orbital being occupied, the initial states being as in Problem 6.18.
Problem
An electric field in the z-direction is increased linearly from zero. What is the probability that a hydrogen atom, initially in the ground state, will be found with its electron in a 2pz-orbital at a time t?
a reversible heat engine receives heat from a heat source at 1000oc and has a thermal efficiency of 45. the heat engine
nitrogen gas at 60 kpa and 7deg c enters an adiabatic diffuser steadily with a velocity of 275 ms and leaves at 85 kpa
a rod has a cross sectional area of 1 cm2. its material has the following strength properties beyond which it breaks
Estimate the temperature in °C and °F at 33,000 ft, an elevation at which many commercial airplanes fly.
steam leaves a power plant steam generator at 3.5 mpa 400degc and enters the turbine at 3.4 mpa 375degc. the isentropic
a small toy car of mass 50 gm is released from rest at a height h to slide down a ramp into a vertical loop of diameter
nitrogen at 100c and 600 kpa expands in such a way that it can be approximated by a polytropic process with n 1.2.
1. What is a parting line or parting surface? 2. What is fluidity? 3. What type of shape modifications or allowances are generally incorporated into a casting pattern?
A liquid cast iron has a density of 7.65 g/cm3. Immediately after solidification, the density of the solid cast iron is found to be 7.71 g/cm3. Determine the percent volume change that occurs during solidification. Does the cast iron expand or cont..
A common approach to system testing is to test the system until the testing budget is exhausted and then deliver the system to customers. Discuss the ethics of this approach for systems that are delivered to external customers.
Determine whether the operation of your proposed power plant is economically feasible, by comparing the cost of producing electricity with your design with the rate that the local utility company charges per kW.h.
compute the torsional shear stress in a hallow shaft with an outside diameter of 40 mm and an inside diameter of 30 mm
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