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A hydrogen atom is in its tenth excited state according to the Bohr model (n=11). (a) What is the radius of the Bohr orbit? (b) What is the angular momentum of the electron? (c) What is the electron's kinetic energy? (d) What is the electron's potential energy? (e) What is the electron's total energy?
what is the max number of steps any worker should be allowed.
A pipe is horizontal and carries oil that has a viscosity of 0.14 Pa s. The volume flow rate of the oil is 5.7 × 10-5 m3/s. What is the absolute pressure at the input end
a 3250 kg open railroad car coasts along with a constant speed of 10.6ms on a level track. snow begins to fall
a billiard ball strikes and rebounds from the cushion of a pool table perpendicularly. the mass of the ball is 0.38 kg.
A 100 kg scaffold is 6 m long. It is hanging with two wires, one from each end. A 500 kg box sits 1.6 m from the left end. What is the tension in the left hand side wire
How long does it take for a golf ball to fall from rest for a distance of 12.0 m? How far would the ball fall in twice that time
A car with good tires on a dry road can decelerate at about 5.0 m/s2 when braking. Suppose a car is initially traveling at 55 mi/h. (a.) How much time does it take the car to stop.
A spelunker is surveying a cave. She follows a passage that takes her a distance 189 straight west, then a distance 220 in a direction 45 east of south, after that a distance 280 at 30 east of north. After a fourth unmeasured displacement she find..
A 745 N window washer is standing on a scaffold supported by a vertical rope at each end. What is the tension in the rope on the left
a 600 ton Boeing business jet is flying at 500 mph at a constant altitude of 35,00 ft. what is the lifting force acting on the jet provided by the air
A 1.0-cm-thick layer of water stands on a horizontal slab of glass. What is the ray's direction of travel in the glass
Two violinists, one directly behind the other, play for a listener directly in front of them. Both violinists sound concert A (440 Hz), What is the smallest separation between the violinists that will produce destructive interference for the listene..
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