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Take element Z = 80 from the periodic table. Ionize it 79 times so that there is only one electron left orbiting around the nucleus. What is the ground state energy of the electron?
What is the energy of the electron when it is in the n = 17 principal state in the ion above?
During a thunderstorm the electric field at a certain point in the earth's atmosphere is 1.11 105 N/C, directed upward, Find the acceleration of a small piece of ice of mass1.08 10-4 g
The squadron commander has the mandate that the database update should be complete in less than one minute. If the topo database is 20 GB, and link is SONET, what is the minimum standard rate necessary.
A 40 kg child sits 1.3 m away from the center of a merry-go-round. If the merry-go-round is traveling with a radial velocity of .78 rad/s, what is the centripetal force on the child
A box of mass 2.1 kg is on a horizontal surface. The coefficient of friction between the box and the surface is 0.32. Find the acceleration of the box
A uniform rope of mass m and length L is hanging straight down from the ceiling. A small-amplitude transverse wave is sent up the rope from the bottom end. Derive an expression that gives the speed v of the wave on the rope in terms of the distanc..
A straight ladder is leaning against the wall of a house. The ladder has rails 3.20 m long, joined by rungs 0.530 m long. What should be the thickness of the rock
You are traveling on an airplane, The velocity of the plane with respect to the air is 190 m/s due east, What is the speed of the plane with respect to the ground
A car traveling at 21 {rm m/s} runs out of gas while traveling up a 25^circ slope. How far up the hill would it coast before starting to roll back down.
A very light rigid rod of length 0.600 m extends straight out from one end of a metre long rod of mass M. Determine the period of oscillation of the system
A swimmer runs horizontally off a diving board with a speed of 3.58 m/s and hits the water a horizontal distance of 1.79 m from the end of the board. How high above the water was diving board.
The string will break if its tension exceeds 50-{rm N}. The stone is whirled in a horizontal circle on a frictionless tabletop; the other end of the string remains fixed. Find out the maximum speed the stone can attain without breaking the string.
A car is driven 125.0 km west and then 65.0 km southwest. What is the displacement of the car from the point of origin (magnitude and direction).
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