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each second the fuel burning in an electric power plant produces 1000 mj of heat energy at a temperature of 527ordmc
two coils have a combined resistance of 9omega when connected in series and 2 omega when connectedin parallel find the
an ice cube of mass of 10 g is taken from the freezer at-10ordmc and placed into 200 ml of water in a 100-g
a metal cube of edge 2 cm is drawn into auniform wire of length 2 m then the wire is cut into 3 pieces ofequal length
an oak barrel with a lid of area 020 m2 is filled with water a long thin tube of cross-sectional area 50 x 10-5 m2 is
a ball is dropped from rest from the top of a building and hits the ground with a speed of v from ground level a second
an astronauts life to to her ship comes loose ans she finds herself stranded at 100m from the ship the astronaut throws
a fine metal foil separates one end of two pieces of opticallyflat glass when light of wavelength 670 nm is incident
electrons mass m charge -e are accelerated from restthrough a petential difference v and are then deflected by
which of these bases is the strongest one which can be used in aq solution and retain its basic
a charge of -245 nc and acharge of -565 nc are separatedby a distance of 700 cm find the position at which a third
nitrogen dioxide no2 cannot be contained in a pure form in the gas phase because it exists as mixture of no2 and n2o4
a find the energy of the electron in the ground state oftriply ionized beryllium which has an atomic number z 4evb find
list in chronological order a major contribution of each of these scientists to the understanding of the atom dalton
the world record for lowest pressure at sea level was 6525 mmhg recorded inside typhoon tip on october 12 1979 in the
when a newtons ring apparatus is immersed in a liquid thediameter of the eighth dark ring decreases from 292 cm to248cm
the half life of uranium-238 is 45 x 109 yr a sample of rock of mass 16 g is found to produce 29 diss assuming all the
a describe the roles played by max planck niels bohr erwin schrodinger paul dirac albert einstein and werner heisenberg
the planet saturn has a mass 952 times that of the earth anda radius 947 times that of the earth find the escape
a 470 ml solution of 0155 m iron iii perchlorate is prepared this solution is then titrated with 184 ml of 0250 m
1 a solutions of hydrochloric acid was formed by dissolving 152g of hydrogen chloride gas in enough water ti make 241
the pressure change outside a house is 1000mmhg the roofhas two halves each with the area of 61045m2 at an angle of
ammonia is produced from the reaction of nitrogen and hydrogen according to the following balanced equationn2g 3h2g
a one mole sample of a monatomic perfect gas with a constant pressure heat capacity of 2085 jkmol is initially at a
a body of mass 12kg is moving with a velocity of 1mscalculate the force required to stop it in 10s how far will it