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a 20 kg mass and a 30 kg mass are attached to a lightweight frictionless pulley the masses are free to move find the
using mmo1-v2c212 to describe the special relativistic effects on an electron orbiting with a speed v in an atom
two pendulum bobs have masses ma 3 kg and mb 2 kg and equal lengths l as shown in the figure bob a is initially held
a muonic atom is an atom containing a muon like an electron but 2064630 times the electron mass calculate the energy of
popitronium is a hydrogen atom with the proton replaced by a positron like electron but w positive charge calculate e1
the magnitude of the electrostatic force between two identical ions that are separated by a distance of 50 10-10 m is
deuterium is a heavy isotope of hydrogen with a nucleus containing one proton and one neutron in the balmer series n4
the charges and coordinates of two charged particles held fixed in an xy plane are q1 29 c x1 35 cm y1 050 cm and q2
an insulated thermos contains 152 cm3 of hot coffee at 90 degc you put a 120 g ice cube at its melting point to cool
what is the maximum wavelength seen in each of the lyman balmer paschen and brackett and pfund series for hydrogen 122
you have an open rgan pipe and a closed organ pipe the fundamental frequency of the open pipe is 300hz the closed piped
a golf ball with mass m 007 kg is tied to a massless string of length l 06 m the ball is made to swing in a circle
a guitar string is 07m long and is tuned to play an e above middle c 330hza how far from the end of this string must a
a 60-w incandescent bulb with a tungsten filament is connected to a 120-v power supply when it operates its temperature
1 what does halving the frequency of a wave do to the other properties of a wave like speed amplitude wavelength period
a 55 kg student traveling in a car with a constant velocity has a kinetic energy of 11 104 j what is the speedometer
a 47 kilo bag of sugar is on a counter how much work is required to put the bag on a shelf a distance of 057 m above
show that the planck radiation law and the raleigh-jeans law become identical if the size of the quantum ehv is allowed
the index of refraction in diamond is 242a what is the critical angle for light in diamond if air is the other mediumb
a negative point charge q1 -4 nc is on thex-axis at x 060 m a second point charge q2-24nc is on the x-axisat x -120
a dentists drill starts from rest after 270 s of constant angular acceleration it turns at a rate of 24 104 revmina
a person makes a quantity of iced tea by mixing 520 g of hot tea with an equal mass of ice at 0c what are the final
a worker pushes horizontally on a large crate with a force of 185 n and the crate is moved 44 m how much work was
an extreme skier starting from rest coasts down a mountain slope that makes an angle of 250o with the horizontal the
consider 10 air molecules in an otherwise empty room find the probability thata exactly four molecules are in the front