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a reaction of importance in the formation of smog is that between ozone and nitrogen monoxide is described as o3g nog
light hits the surface of water at an incident angle of35deg with respect to the normal line what is the angle between
using equation e-21810-181n2 calculate the energy of an electron in the hydrogen atom when
a 40 kg crate is pulled across a rough horizontal surface with a force of 350 n at an angle of 25o above the horizontal
suppose you are standing at the bottom of a swimming pool looking up at the surface which we assume to be calm looking
the energy of activation for a certain reaction is measured to be 900kjmol the rate comstant of this reaction is 3026
a stone dropped into a pond generates a travelling wave group approximately 1 m long the waves within the group have a
what will be the lowest possible temperature to which very dry air at t 104f can be cooled by evaporation consider p
a series rc circuit has a time constant of 1000 s the battery has an emf of 480 v and the maximum current in the
an electron experiences the greatest force as it travels 102106 ms in a magnetic field when it is moving horizontally
for a mass spectrometer the magnetic field is varied to allow ions of varying mass to reach the detector a different
a log of mass 40 kg is dropped into river at 0degc if the relative density of the log is 08 what will be the volume of
a uniform rod rotates in a horizontal plane about a vertical axis through one end the rod is 763 m long weighs 111 n
water flowing out of a horizontal pipe emerges through a nozzle the radius of the pipe is 24 cm and the radius of the
an electron is moving in the y direction at 47 x 105 ms when it encounters a magnetic field of 25 t coming out of the
a machine part rotates at an angular speed of 066 rads its speed is then increased to 30 rads at an angular
two seperate solutions are made containing 100ml 026m hcl and 50ml 052m naoh at 200 c the solutions are mixed at
starting from rest a 500 kg block slides 250 m down a rough 300deg incline the coefficient of kinetic friction between
treatment with 3-hexene-2-ol with concentrated hcl gives a mixture of two prodcuts2-chloro-3-hexene and
what is the mole percent of ethanol c2h5oh which consists of 710g of ethanol for every 183grams of water
what can you conclude when no precipitate forms when hcl is added to an unknown
a 15 kg block is held against a spring of force constant 18516 nm compressing it a distance of 180 cm how fast is the
a 125 by mass solution of sodium chloride nacl in water has a density of 1115 gml at 20 degrees c what is the molarity
a metal wire has a resistance of 800 at a temperature of 20degc if the same wire has a resistance of 1085 at 90degc
suppose one night that the radius of the earth decreased by two was half as big as normal but the mass stayed the same