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show all the work for the following1 the distance to alpha centauri is 426 lightyears when earth and mars are nearest
the weight of passengers on a roller coaster increases by 57 as the car goes through a dip with a 39 radius of
a very large nonconducting plate lying in the xy-plane carries a charge per unit area of 10s a second such plate
the distance between two telephone poles is 445 m when a 100-kg bird lands on the telephone wire midway between the
a half-open pipe is constructed to produce a fundamental frequency of 274 hz when the air temperature is 20 degc it is
a soprano sings the note c6 1046 hz across the mouth of a soda bottle to excite a fundamental frequency in the soda
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a 300 kg block starts from rest at the top of a 295deg incline and slides 200 m down the incline in 125 sa find the
standing on a sidewalk you notice that you are halfway between a clock tower and a large building when the clock
using heisenberg uncertainty principle estimate fastest possible decay lifetime for a nuclear decay with an energy
consider a parallel-plate capacitor constructed from two circular metal plates of radius r the plates are separated by
a particle moves in a plane with a constant radial velocity rhat 4 ms the angular velocity is constant and has
estimate how many molecules of air are in each 18 l breath you take that were also in the last breath einstein took
a simple gear train is composed of three gears gear a os tje driver and has 8 teeth gear b has 24 teeth and gear c has
rate equations in a four-level laser consider a four-level laser with an active volume v 1 cm 3 the population
a rock is dropped off a 200m cliff what is the velocity of the rock at a height of 30m we are currently studying the
consider a system of 2 particles each of which can stay in 0epsilon3epsilonlet temp tkb-1a derive partition function
in a historical movie two knights on horseback start from rest 73 m apart and ride directly toward each other to do
levitation by light pressure consider an isolated hydrogen atom of mass 166 x10- 27 kg find the number of photons that
consider an isolated hydrogen atom of mass 166x10-27 kglet an upwardly directed laser beam emitting 1 ev photons be
a sinusoidal wave traveling in the positive x-direction has a wavelength of 11 cm a frequency of 13 hz and an amplitude
two waves traveling in opposite directions along a string fixed at both ends create a standing wave described by yx t
a nuclear power plant has a power output of 1004 mw and operates with an efficiency of 32 if excess heat is carried
vector a added to vector b is equal to the magnitude of a added to the magnitude b the vectors must bea perpendicularb
covelant and ionic bonds differ in thata ionic bonds dont involve the sharing of electronsb covalentbonds are more