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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?
A uniform narrow tube 1.80m long is open at both ends. It resonates at two successive harmonics of frequencies 279Hz, What is the speed of sound in the gas in the tube
why does d account for the reduction of the distance from 8.5 km to a 0 distance. Is this not a reflection of displacement rather than just distance
Illustrate what is the average emf that is induced in this coil if it is in a region where B=2.0 T upward, and the coil's plane is perpendicular to B?
How many conduction electrons are there in a 3.50 mm diameter gold wire that is 50.0 cm long
Two charges are placed on the x axis. One of the charges q1= +8.5 C is at x1 = + 3.0 cm and the other q2= -21C is at x1 = + 9.0 cm. Find the net electric field (magnitude and direction) at.
A piece of charcoal used for cooking is found at the remains of an ancient campsite. Find the age of the charcoal in years
Find out the net force exerted on the fluid inside the box by summing momentum flow rates out through each of four sides of the box.
A mass m is gently placed on the end of a freely hanging spring. The mass then falls 32.0 cm before it stops and begins to rise. What is the frequency of the oscillation
A wave has a known propagation velocity of 4.32 m/s and a wavelength of 0.388 meters. What is the position equation of the wave
The E' is an unstable particle, with a mean lifetime on 2.5x10^-10s. What is the minimum uncertainty in this particles energy
Suppose a single electron orbits about a nucleus containing two protons (+2e), as would be the case for a helium atom from which one of the naturally occuring electrons is removed, Determine the magnitude of the electron's centripetal acceleration
Two ants race across a table 62 cm long. One travels at 4.77 cm/s and the other at 2 cm/s. When the first one crosses the finish line, how far behind is second one. What am I trying to solve for distance, speed, or time.
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