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a sailboat runs before the wind with a consant speed of 42ms in a direction 32 deress north of west how far a west and
a proton of mass m moving with a speed of 30x 106 ms undergoes a head-on elastic collision with an alpha particle of
one end of a 023-m copper rod with across-sectional area of 110 10-4 m2 is driven into thecenter of a sphere of ice at
the co2 exhaled by astronauts must be removed from the spacecraft atmosphere one way to do this is with solid liohco2g
starting from rest a 100-kg block slides 300m down africtionless ramp inclined at 300deg from the floor to thebottom
complete the reaction write the equation as a balanced equation complete ionic equation and net ionic equation be sure
the frequencies of the spectral lines in light from a distant galaxy are found to be two-thirds as great as those of
a low-power laser used in a physics lab might have a power of050 mw and a beam diameter of 30mm calculatea the average
the z0 boson discovered in 1985 is themediator of the weak nuclear force and it typically decays veryquickly its
approximately 12 million kilograms of phosphoric acid h3po4 are produced annually for fertilizers detergents and agents
a 200m wide river flows due east at a uniform speed of 20msa boat with a speed of 80ms relative to the water leaves
a ball is dropped from rest at the top of a 610 m tallbuilding falls straight downward and collides inelastically
a skier is gliding along at 472 ms on horizontal frictionless snow he suddenly starts down a 192deg incline his speed
-- 243 g of magnesium yield 403 g mgo upon combustion with oxygen how much magnesium needs to be burned to yield 121 g
a 663 kg elevator starts from rest it moves upward 27s with aconstant acceleration until it reaches its cruising speed
a rock is tossed straight up with a velocity of 400 mswhen it returns it falls into a hole 115 m deep what is therocks
a rock is dropped from a sea cliff and the sound of it strikingthe ocean is heard 32 s later if the speed of sound
the solubility of benzoic water in acid at 0 degrees c is 90gm100ml in a recrystallization of benzoic acid 225gm
a fire helicopter carries a 580 kg bucket of water at the end of a 200 m longcable flying back from a fire at a
a 320 kg steel ball strikes a wall with a speed of100ms at an angle of 600 degrees with the surface it bouncesoff with
calculate the volume of a 0122 m potassium permanganate solution needed to react with a second 150 ml sample of the
a 750 kg stunt man jumps from a balcony and falls 240 mbefore colliding with a pile of mattresses if the mattresses
a first order reaction has an activation energy of 592 kjmol and a frequency factor arrhenius constant of 913 x 1013
a diver performing a double somersault spins at an angular speed of49pi rads precisely 070 s after leaving the