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a tennis ball of mass m 0070 kg and speed v 25 ms strikes a wall at a 45deg angle and rebounds with the same speed at
what is the formula and molarity of the salt produced by the reaction of 17 ml of 033 m h2so4 and 44 ml of 023 m sroh2a
what is the molarity of the nabr produced when 500 ml of 480 m naoh is mixed with 1500 ml of 160 m hbra 240 mb 320 mc
a rocket of total mass 3180 kg is traveling in outer space with a velocity of 115 ms toward the sun it wishes to alter
when crystals of d-fructose are dissolved in basic aqueous solution two aldohexoses are obtained propose the structures
a car traveling at 70 ms accelerates at the rate of 080 ms2 for 20 s what is the final velocity of the
an ion enters a mass spectrometer which has a 018 t field perpendicular to an electric field of 16 kvm and selects a
what is the concentration of a nitric acid solution if a 1000 ml sample of acid requires 3125 ml of 0135 m koh for
a simple pendulum is made from a 055-m-long string and a small ball attached to its free end the ball is pulled to one
an aliquot 287 ml of a koh solution required 313 ml of 0118 m hcl for neutralization what mass g of koh was in the
a frictionless ramp is constructed so that it is at a 30 degree angle to the horizontal it is 18 meters long and 09
a 255 ml aliquot of hcl aq of unknown concentration was titrated with 0113 m naoh aq it took 512 ml of the base to
an equilibrium mixture contains n2o4 028 atm and no2 11 atm at 350 k the volume of the container is doubled at
a 204 dog is running northward at 285 while a 533 cat is running eastward at 367 their 775 owner has the same
a 250g sample of gaseous cl2o7 is placed in a 400l flask at 25 degrees c and begins to decompose when equilibrium is
a 0145 kg baseball pitched at 450 ms is hit on a horizontal line drive straight back toward the pitcher at 520 ms if
a mixture containing 39 moles of no and 94 moles of co2 was allowed to react in a flask at a certain temperature
a spring is compressed by 00612 m and is used to launch an object horizontally with a speed of 164 ms if the object
above 300 degrees c ammonium nitrate decomposes to n2 o2 and h2o write a balanced chemical reaction describing the
a model rocket is constructed with a motor that can provide a total impulse of 290 nmiddots the mass of the rocket is
a chemist trying to synthesize a particular compound attempts two different synthesis reactions the equilibrium
a car enters a freeway with a speed of 65 ms and accelerates to a speed of 24 ms in 35 minutes how far does the car
a marble has mass 9kg it is released from height3m down a ramp into a loop-the-loop of radius1 at the top of the
a car traveling initially at 70 ms accelerates to velocity 120 ms in 20 s what is the average acceleration of the
a loop of area 0100 m2 is rotating at 3600 rpm revolutions per minute with an axis of rotation perpendicular to a 020 t