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A) Calculate the energy of the electron in the ground state of double ionized lithium, which has an atomic number Z = 3.
B) Calculate the radius of its ground-state orbit.
A man sitting in a bosun's chair that dangles from a massless rope, which runs over a massless, frictionless pulley and back down to the man's hand. The combined mass of the man and chair is 86 kg. With what force magnitude should the man pull on ..
Assume that the mud ends up uniformly distributed over a surface area of the valley measuring 0.3 km x 0.3 km, What is the mass of the mud sitting above a 4 m2 area of the valley floor
A coin is located 20.0 cm to the left of a converging lens (f = 13.0 cm). A second, identical lens is placed to the right of the first lens, Find the separation between the lenses.
Consider a game of billiards. The cue ball has an initial speed v0 before it strikes the eight ball which was previously at rest, Find the nal speeds of both the cue ball and the eight ball, assuming that the collision was perfectly elastic
A second baseman tosses the ball to the first baseman, who catches it at the same level from which it was thrown. How long is the ball in the air
A convex lense of focal length 18 cm is used as a magnifying glass. at what distance from a tiny insect must you hold this lense to get a magnification of 3.
A torque of 16Nm is applied to a heavy wheel whose moment of inertia is 34 kgm2. What is the angular acceleration of the wheel
A bird stands on an electric transmission line carrying 1200 A. of current. The line has 6.0E-05 ohm resistance per meter, What voltage does the bird feel
A woman inside an elevator is standing on a scale. Before the elevation it starts moving the scale shows 50 kg, calculate the acceleration of the elevator if when it starts moving upward the scale reads 70kg. What will the reading of the scale be ..
A 9 V battery is rated at 80 Ah. It can deliver a current of 80 A for one hour, or a current of 40 A for 2 hours, etc. What is the total energy stored in the battery
A step-down transformer has 16,000 turns on the primary and 95 turns on the secondary. If the rms emf across the secondary coil is 120 V, Elucidate the maximum emf across the primary coil?
How many electrons should be transferred from the plate. When you enter your answer, leave off the unit rm dB.
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