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1. Does the square well potential energy persist after on electron is trapped to the ground or an excited state? What is the one-dimensional potential energy expression for the second electron?
2. Describe qualitatively the three lowest possible two-electron bound solutions taking into account electron spin so two electrons can occupy one energy level: both symmetric at the ground state; on at the asymmetric ground state and one at the first excited antisymmetric state; and both at the first excited antisymmetric state. Is it possible to have a well width that the first two solutions above do not exist and the lowest allowed energy is one I which both electrons have the one node antisymmetrical wave function? Explain.
A 25.0 kg child on a 2.00 m long swing is released from rest when the ropes of the swing make an angle of 60.0 degrees with the vertical. determine the childs speed at the lowest position
A spring of force constant k=2.5*10^2 N/m is suspended form a rigid support. An object o mass 1.00 kg is attached to the uns How far below the starting point is equilibrium position for the object.
The impact of the head of a golf club on a golf ball can be approximately regarded as an elastic collison. what must the speed of the club be before impact
A 2000 kg car traveling at a speed of 23m/s skids to the halt on wet concrete where = 0.60. How long are the skid marks.
Find the minimum diameter of an l = 18.2 m long aluminum wire that will stretch no more than 7.70 mm when a mass of 339 kg is hung on the lower end
A concave mirror is to form an image of the filament of a headlight lamp on a screen 8.00 m from the mirror, How far in front of the vertex of the mirror should the filament be placed
A rectangular sharp-crested weir is used to measure the flowrate in a channel of width 10 ft. It is desired to have the upstream channel flow depth be 6 ft when the flowrate is 50 cfs. Determine the height, Pw, of the weir plate.
An F-15 supersonic fighter aircraft is in a rapid climb. Calculate this rate of change of pressure in units of pounds per square foot per second
A 0.340 kg block is attached to ahorizontal, ideal spring with spring constant k = 30.0 N/m. There is no friction. At t = 0, the block has a velocity of - 5.00 m/s and adisplacement of 0.280 m.
Astronomical observations of our Milky Way galaxy indicate that it has a mass of about 8 ? 1011 solar masses. What should the orbital period of that star be
An archer shoots an arrow toward a 300g target that is sliding in her direction at a speed of 2.50 m/s on a smooth, What is the speed of the arrow after passing through the target
A laser beam aimed from the earth is swept across the face of the moon. at what speed does the laser light move across the moon's surface
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