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a toy balloon is initially at a temperature of t 15o c its initial volume is 00042 m3 it is a 10 cm radius sphere
consider a system of two bound particles eg two nucleons bound by the weak force of spins s1 s2 with s1 s2 12 in an
a century ago scientists believed that the universe was infinite with no beginning and no end einstein then predicted
a explain why the electron density of hydrogen is very nearly 6x1026 electronskgb explain why the electron density of
the mean or average value of the potential energy of the electron in a hydrogen atom can be found by integrating the
the tungsten filament of an incandescent lightbulb has a temperature of approximately 3000 k the emissivity of tungsten
in this problem you will model helium-3 as a non-interacting fermi gas although 3he liquefies at low temperatures the
prove that given two angular momenta l and s their sum j l s satisfies the commutation relations of the angular
a projectile is fired from the origin at y 0 m as shown in the figure the initial velocity components are 920 and 79
westerly winds coming off the pacific ocean rise over the rocky mountain which rise to a height of approximately 15000
calculate the work done the amount of heat absorbed and the change in internal energy duringa melting of 1 gram of ice
in a certain cyclotron a proton moves in a circle of radius 0750 m the magnitude of the magnetic field is 160 ta what
a carnot engine is operated between two heat reservoirs at temperatures of 300k and 400ka if the engine recieves 1200kj
use the ground-state wave function of the simple harmonic oscillator to find deltax assume that
find the inertia tensor for a uniform thin hollow cone such as an ice-cream cone of mass m height h and base radius r
electrons can be ldquoboiled offrdquo of a wire by heating the wire to sufficiently high temperature typically well
letrsquos do some electrochemistry a process for electroplating an object with gold is as follows the object to be
1 two identical batteries a and b each have an emf of 15 v the positive terminal of battery a is connected via a 10 cm
an ion with charge q and radius 110-10m is present in 1 m concentration in h2o at equilibrium what is the concentration
consider a particle of spin 12 in a magnetic field b 0 0b0 if the initial spin state of the electron is x 10 then the
att 0 an electron crosses the positivey-axis sox 0 at30cm from the origin with velocity6105ms in the
an electron with a speed of36105ms enters a uniform magnetic field of magnitude0057t at an angle of 35deg to the
a rectangular coil with 22 windings carries a current of 2 ma flowing in the counterclockwise direction it has two
the electric field phasor of an electromagnetic wave in air is given byez y 0750 sin 250 pi z vma find the wavelength
a copper wire of radius010mm is carrying a current at the earths equator assuming that the magnetic field of the earth