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a 720 nm light bean in air hits the flat surface of a certain plastic and the bean is split into a reflected ray and a
a gas contains no2 molecules at 30 degc the mass of a n02 molecule is 153 middot 10-26 kg what is the average speed of
helium gas is confined in a volume of 3 m3 and is at pressure of 21 atmospheres what is the thermal energy of this
a thin film of oil is placed on a piece of glass the oil has an index of refraction of 129 and the glass has an index
light wavelength is 510 nm is directed at a double slit where the distance between the slits is 450 micrometers a
a firehose 15 m long is uncoiled by pulling the nozzle end horizontally along a frictionless surface at the steady
an organ pipe open at both ends is vibrating with n5 with a frequency of 646 hz the length of the pipe is 05 m
two identical 012 kg blocks labeled 1 and 2 are initially at rest on a nearly frictionless surface connected by an
the fresh water behind a reservoir dam is 150 m deep a horizontal pipe 250 cm in diameter passes through the dam 75 m
part 1 a spool of wire of mass 69 kg and radius 028 m is unwound under a constant wire tension 15 n assume the spool is
two identical 013 kg blocks labeled 1 and 2 are initially at rest on a nearly frictionless surface connected by an
a runner whose mass is 55 kg accelerates from a stop to a speed of 8 ms in 3 seconds a good sprinter can run 100 meters
a string is wrapped around a disk of mass m 19 kg and radius r 012 m starting from rest you pull the string with a
an iron casting containing a number of cavities weighs 200528 n in air and 161210 n in water what is the total volume
a room with dimensions 7m x 8m x 25m is to be filled with pure oxygen at 220 degrees c and 100 atm the molar mass of
a 300 lb bungee jumper wants to jump from the top of a 230 ft high bridge and be able to just touch the water below
a uniformly charged wire or radius r1002m runs down the axis of a cylinder of inner radius r2006m the potential
a 54 ball hangs from a steel wire 180 in diameter and 600 long what would be the speed of the wave in the steal
three 15 cm long rods form an equilateral triangle two of the rods are charged to 13nc the third to -13nc what is the
a drop of unknown liquid is placed at the point on a glass surface where internal reflection is occurring at 48deg
a beam of nuclei is used for cancer therapy each nucleus has an energy of 128 mev and the relative biological
compute the angular momentum of the earth arising from the following motionsa earths orbital motion around the sunb
a copper bar 300 cm long is perpendicular to a field of flux density 080 wbm2 and moves at right angles to the field
a particle with charge q and mass m moves in a horizontal plane at right angles to a uniform vertical magnetic field ba