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justify whether the following closed system processes have u q w and h increase decrease or remain the same 0a a gas
which one of the following statements is correct concerning the purpose of the surfactant secreted by the alveoli in
in a specific heat experiment 2120 grams of aluminum c9130 jkgk at 1000degc is mixed with 640 g water at 200degca
for the following provide a structure of the molecules described if the name is incorrect please provide the correct
a copper block with a mass of 400 grams is cooled to 77k by being immersed in liquid nitrogen the block is then placed
a sphere of radius 10 cm is dropped into a glass cylinder filledwith a viscous liquid the mass of the sphere is 120 g
a glass jar submerged half-way is foating in a bathtub suppose that you start putting nickel coins in the jar
two identical cylinders except for their volumes at the same temperature each contain the same kind of gas and the same
if someone can help me with the steps involved in solving this problem i would really appreciate itthe ksp value for
a diver of mass 68 kg stands at the end of a uniform diving board of mass 16 kg and length 45 m the board is attached
a rope is pulling a 255 kg mass along a horizontal surface the kinetic coefficient of friction between the mass and the
a sample of river water has a phenolphthalein alkalinity of 30 times 10-5m a ph of 1000 and a bicarbonate ion
the drawing shows four point charges the value of q is31 muc and the distance d is 089 m find the total potential at
a a carnot engine operates between a hot reservoir at 3550 k and a cold reservoir at 2650 k if it absorbs 5100 j of
a dose of aspirin of 50 mg per kg of body weight has been prescribed to reduce the fever of an infant weighing 125
a man stands at one end of a 200 kg uniform board what is the mass of the man if the center of the mass of the
a 2000-kg car moving with a speed of 20 ms collides with andsticks to a 1500kg car at rest at a stop sign show that
the total calories for 6 tablespoons of crunchy peanut butter that contains 18g of carbohydrate 48g of fat and 21g of
a 2000 kg car starts at rest at the bottom of a hill the road is flat at an angle of 522 with the horizontal
a wire carrying 8 a of current is bent into a right angle the j lenght 04m and i 3m the wire is completely sourrounded
a hoist is powered by an electric motor that draws 482 kilowatts of electric power the system is 592 efficient ie 592
ball rolls 60cm to the porchs edge drops 40 cm continues rollingon the grass and eventually stops 80 cm from the
a t-bar tow is used to pull 80 skiers up a 600-m long slope inclined at 150 degrees to the horizontal at a speed of
one of the components of polluted air is no it is formed in the high-temperature environment of internal combustion
a prove that a mass on a pendulum will execute steady circular motion if tandelta v2grb if a 40 kg mass goes 15 ms in