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Apply Bohr's quantization condition to the motion of the Earth around the Sun.
a) Find a formula for the radii of the allowed circular Earth orbits (involving quantum number n ).
b) What is the difference in radii among the orbit in part (b) and the next larger allowed orbit?
c) The actual radius of the Earth's orbit is about 1.50 x 1011 m. What value of the quantum number n does this correspond to?
The body contains many small currents caused by the motion of ions in the organs and cells. Measurements of the magnetic field around the chest due to currents in the heart give values of about 1.0 µG. how large is the current in the heart
consider an insulating rigid box divided by a movable partition into two subsystems volumes va and vb each filled with
A 30.0 mL aliquot of a manganese solution (12.5 mg/mL of manganese, FW=59.94) was added to a 100. mL volumetric flask and diluted to the mark with distilled water. At a wavelength of 525 nm, this solution had an absorbance of 0.625 in a 1.000 cm cuve..
After being kidnapped and placed in the trunk of a car, you discover you are able to pry open the trunk. What was your average acceleration during this trip
A tetherball leans against the smooth, frictionless post to which it is attached. What is the force the pole exerts on the ball
Given that the Moon period about the Earth is 27.32 days andthe distance from the Earth to the Moon is 3.84 x 10^8 m, estimate the mass of the Earth
To prevent damage to floors (and to increase friction), by what factor does the tip reduce the pressure exerted by the crutch
a frictionless inclined plane with angle of inclination theta is fixed to the floor of a train car accelerating in the
the immediate cause of many deaths is ventricular fibrillation an uncoordinated quivering of the heart as opposed to
A sledge loaded with bricks has a total mass of 17.0 kg and is pulled at constant speed by a rope inclined at 19.9° above the horizontal. How much work is done by the rope on the sledge
A small coin, initially at rest, begins falling. If the clock starts when the coin begins to fall, what is the magnitude of the coin\'s displacement
A baseball approaches home plate at a speed of 46.0 m/s, moving horizontally just before being hit by a bat. What is the average vector force the ball exerts on the bat during their interaction
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