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a disk has a moment of inertia 30 x 10-4 kg m2 and rotates with an angular speedof 35 radsec what net torque must be
bill is flying an airplane with air speed 300 ms going south mike is on the ground and sees the plane traveling 250 ms
at a given time t0 sample a contains 750000 radioactive nuclei during the 1 hour before t0 a total of 280000 decays
the osmotic pressure of 0010m mgso4 solution at 25 degrees c is 0318 atm calculate i the van hoff factor for this mgso4
find the temerature at which water boils on a day in the mountains when the barometric pressure is 593 mmhg gien the
palladium crystallizes in a face-centered cubic unit cell its density is 120 gcm3 at 27 degrees c calculate the atomic
an lc circuit has a 25mh inductor and a 12uf capacitor the current is at its maximum value of 07a at t0how long does it
which of the following aqueous solutions has the highest boiling point kb for water is 052 degrees cma 0wm kcld a and
estimate the radiation pressure due to a 100 w bulb at a distance of 80 cm from the center of the bulb nm2estimate the
if ka is 185 x 10-5 for acetic acid calculate the ph at one half the equivalence point and at the equivalence point for
a parallel plate capacitor is made of two 5cm x 5cm square plates that are separated by 012mm the plates are charged to
how many grams of water are needed to dissolve 278 g of ammonium nitrate nh4no3 in order to prepare a 0452 m
the image of a tree on a 35 mm color slide is 17 mm high it is to be projected onto a screen 80 m from the slide and is
the vapor pressure for water at 20 degrees c is 175 mmhg what is the vapor pressure of water over a solution prepared
a tank holds a layer of oil 158 m thick which floats on a layer of syrup that is 066 m thick both liquids are clear and
mgo has the same crystal structure as nacl face-centered cubic how many oxide ions surround each mg2 ion as nearest
a tanker ship is filled with 225 x 105 m3 of gasoline at a refinery in southern texas when the temperature is 172deg c
the molar heat capacity of silver is 2535 jmol c how much energy would it take to raise the temperature of 100g of
nitrogen oxide is a pollutant that causes health problems as well as acid rain no naturally forms in the atmosphere in
a gas is confined to a container with a massless piston at the top part c figure a massless wire is attached to the
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 sample of oxygen gas is collected over water at 25 degree celsius and a total pressure of 654 torr the volume of the
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
consider the titration of 300 ml of 0025 m nh3 with 0020 m hcl calculate the ph after the following volumes of titrant