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a the electric starter in an automobile equipped with a 12 v battery draws a current of 9000 a when in operation
calculate the reversible work required to transport 1mol of k from a region where ck525 mm to a region where ck355 mm
a 460 kg block of ice at 0degc is added to an insulated container partially filled with 106 kg of water at 150degca
suppose the concentration of protons inside a cell membrane is cin and similarly the concentration outside is cout
the density of charge-carrying electrons in copper is 85 times 1028 electrons m3 its resistivity is 172 times 10-8
an object is placed 126 cm in front of the cornea the cornea is thin ans has approximately parallel sides so that the
a solution contains 025 m nino3 and 025 m cuno32 can metal ions be separated by slowly adding na2co3 assume that for
a satellites are placed in a circular orbit that is 364 times 107 m above the surface of the earth what is the
the cheetah can reach a top speed of 114 kmh 71 mih while chasing its prey in a short sprint a cheetah starts from rest
why does the addition of the no2 to the acidic solution of acetanilide need to be performed at a cold temperature what
a 47-kg bungee jumper has fallen far enough that her bungee cord is beginning to stretch and resist her downward motion
1 give an example of thermodynamically stable system and a kinetically stableone whats the differencethe following
a train 350 m long is moving on a straight track with a speed of 848 kmh the engineer applies the brakes at a crossing
calculate the standard cell potential and the equilibrium constant for the oxidation of ethanol to acetaldehyde
runner a is initially 30 mi west of a flagpole and is running with a constant velocity of 30 mih due east runner b is
a car starts from rest and travels for 50 s with a uniform acceleration of 23 ms2 the driver then applies the brakes
calculate the maximum concentration in m of silver ions in a solution that contains 0025 m co32- the ksp of ag2co3 is
a major-league pitcher can throw a ball in excess of 415 ms if a ball is thrown horizontally at this speed how much
a thermally powered refrigerator receives heat from a flame at 400 c and withraws heat from a cold box at -40 c if the
a large electromagnet draws a current of 26100 a at 31100 v the coils of the electromagnet are cooled by a flow of
both e- and z- 2-cholorobutenedioic acids dehydrochlorinate to give acetylene dicarboxylic acid the z acid reacts about
consider a solution formed by mixing 300 ml of 0100 m h2so4 245 ml of 0100 m hocl 250 ml of 0200 m naoh 250 ml of 0100
a styrofoam box has a surface area of 079 m2 and a wall thickness of 20 cm the temperature of the inner surface is
a 400-n crate starting at rest slides down a rough 600-m-long ramp inclined at 300deg with the horizontal the magnitude
an 250 kg air hockey puck is tied to a peg the puck is given a push and moves around the peg at a constant speed in a