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a toy train rolls around a horizontal 15-m-diameter trackthe coefficient of rolling friction is 015what is the
a 000062g sample of benzene c6h6 is dissolved in 2000 ml of water the solution gives an absorbance of 0102 at 227nm
the circuit in the drawing contains two resistors and two capacitors that are connected to a battery via a switch when
in a gravimetric chloride lab a source of error was that the precipitate was washed to remove the adsorbed ag1 ions
a penny of mass 31 g rests on a small 13 g block supported bya spinning disk of radius 11 cm the coefficients of
an empty capacitor is connected to a battery and charged upthe capacitor is them disconnected from the battery and a
the equilibrium constant kc for the reaction c--ampgtamplt-- is 510e-5 the initial composition of the reaction mixtures
have a 25l soln made up of 005m cl- 00002m br- and 0100m cro4 you slowly add drops of a 05m agno3 solnksp for
if the value of kc for the reaction is 250 what are the equilibrium concentrations of the products if the reaction
a stream of air enters a 750-cm id pipe at a velocity of 60ms at 27c and 180 bar gauge at a point downstream the air
in the drawing the weight of the block on the table is450 n and that of the hanging block is160 n ignore all frictional
two tugboats pull a disabledsupertanker each tug exerts a constant force of 155 x 106 none 20deg west of north and
a perfume company wants to dispense 192 quarts of a new fragrance into small vials how many 150 ml vials can they fill
a 040 kgball attached to the end of a horizontal cord is rotated in acircle of radius 15 m on a frictionless horizontal
if i started with 2000 g of salicylic acid and obtained 2000 g of dry aspirin at the end of the synthesis what would my
for the following reaction kc is 144 at 200 degrees c if 0400 mol of both a and b are placed in a 20 liter container at
a 450 kg girl is standing on a 152 kg plank the plank originally at rest isfree to slide on a frozen lake which is a
tin ii ions react with periodate ions in acid medium to give iodide and tin iv ions 25 ml of a 0250m solution of tinii
suppose your lab instructor inadvertently gave you a sample of khp contaminated with nacl to use in standardizing your
one stereoisomer of a-ocimene a monoterpene used in perfumery is e-37-dimethyl-137-octatriene draw the structure of
two air carts of mass m184 kg and m242 kgare placed on a frictionless track cart 1 is at restinitally and has a spring
calculate the mass in grams of the product formed when 395 of ba completely reacts assume that there is more than
if a satellite is placed in orbit about the earth at adistance 27 times the earths radius what will its velocity be how
a first-order reaction has a half-life of 264 seconds how long will it take for the concentration of the reactant in
water is flowing in a circular pipe with varyingcross-sectional area and at all points the water completely fillsthe