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a concave mirror lies flat on the floor with f1m a ball isdropped from 3m describe the image of the ball as it
identical particles are placed at the 80 cm and 50 cm marks on a meter stick of negligible mass this rigid body is then
in coming to a stop a car leaves skid marks 85 m long on thehighway assuming a deceleration of 40 ms2 estimate the
a 500 g object moving to the right at 200 cms makes an elastic head-on collision with a 100 g object that is initially
a mountain climber wears down clothing 329 cm thickwith total surface area 166 m2 the temperature at thesurface of the
two insulated wires each 290 m longare taped together to form a two-wire unit that is 290 m long one wire carries a
the current density in a 28 mum thick 75 mum wide gold long film is 750000 am2 the current flows along the length of
the volume flow rate in an artery supplying the brain is 420 10-6 m3sa if the radius of the artery is 590 10-3 m
as per to the following reaction define how many grams of carbon tetrachloride are necessary for the complete reaction
an aluminum can is filled to the brim with a liquid the liquid and the can are heated thus their temperatures change by
a metal container which has a mass of 84 kg contains 153 kg ofwater a 21-kg piece of the same metal initially at a
as per to the following reaction explain how many moles of oxygen gas are necessary to form 0158 moles sulfur
a distant galaxy emits light that has a wavelength of 5007 nm on earth the wavelength of this light is measured to be
a skier starts from rest at the top of a friction less incline of height 200 m at the bottom of the incline the skier
explain when a solution containing 14g of bano32 and 24g of nh2so3h is boiled a precipitate forms the precipitate may
a 900 sports car collides into the rear end of a 2500 suv stopped at a red light the bumpers lock the brakes are
a compound containing selenium also fluorine is decomposed in the laboratory and produces 2231 g of selenium also 3221
copper ii fluoride contains 3742 f by mass use this percentage to compute the mass of fluorine in grams contained in
wheel starting from rest rotates with a fix rotational acceleration of 250 rads2 during a certain 200 s interval it
the rotational speed of an auto mobile engine is increased at a constant rate from 1400 revmin to 3100 revmin in 16 sa
compute the number of grams of sodium in 50 g of each of the subsequent sodium-containing food additivesnacl table
a person enters a tall tower needing to know its height he notes that a long pendulum extends from the ceiling almost
explain burning in pure oxygen the hydrocarbon gas butane c4h10 produces carbon dioxide and water if 030 moles of
an 850 tall cylinder floats in water with its axis perpendicular to the surface the length of the cylinder above
assume bromine trifluoride can be ready by the direct combination of the elementsbr2 g 3f2 g 2brf3 gexplain what