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for the real or imaginary nucleus of 85x210 finda the net electrical charge of the nucleusb the number of neutronsc the
nitrogen oxides nox play an essential role in the production of pollutants found in photochemical smog the nox in the
an ideal gas expands isothermally performing 430times103j of work in the processcalculate the change in internal energy
consider the following ions nh4 co32-br-s2-clo4- a which of these ions in water gives an acidic solution b which of
a you wish to determine the height of the smokestack of a local coal burning power plant you convince a member of the
hot water at 90 degrees c is poured into a large styrofoam cup that contains water at 20 degrees c the final
it takes 530 j to raise the temperature of an 102 g piece of unknown metal from 130 c to 249 c what is the specific
a classroom demonstration is done with an atwood machine the masses are m1 10 kg and m2 110 kg if the larger mass
a solid disk of radius 650cm and mass 135kg which is rolling at a speed of 270ms begins rolling without slipping up a
the specific heat capacity of liquid water is 418 jg-k how many joules of heat are needed to raise the temperature of
two identical coils are parallel to each other on the same axis they are separated by a distance equal to their radius
strontium-90 is present in the fallout produced by nuclear weapons testing in the atmosphere sr-90 is potentially
plutonium-239 is a byproduct of the fission reaction used to produce energy in nuclear power reactors it has a
only about 5 of the energy in the universe is composed of baryonic mattera estimate the average density of baryonic
a double-slit experiment is set up using a helium-neon laser 633nm then a very thin piece of glass n150 is placed over
a ball with a mass of 05kg and a diameter of 04 m floats so acceleration 0 in the ocean salt watera what is the
the velocity-time graph of part of a cyclists trip consists of a straight line between v 240 ms at t 130 s and v 0
a copper kettle contains water at 228deg c when the water is heated to its boiling point the volume of the kettle
write the appropriate nuclear equation for the following description iodine-131 has a half-life of 8 days if you
on the moon the surface temperature ranges from 397 k during the day to 920 k at nighta what are these temperatures on
using 1-propanol as your only source of carbon propose a synthetic route for
140 moles of gas are in a 500 l tank at 234 c calculate the difference in pressure between methane and an ideal gas
a compound microscope has an objective lens of focal length 103 mm with an eyepiece of focal length 150 mm and it
a 1-l flask is filled with 130g of argon at 25c a sample of ethane vapor is added to the same flask until the total