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a volleyball is spiked so that its incoming velocity of40ms is changed to an outgoing velocity of -21 ms the mass ofthe
a certain gyroscope consists of a uniform disk with a 47 cm radius mounted at the center of an axle that is10 cm long
a 130 kg bucket of water of is suspendedby a rope wrapped around a pulley which is just a solid cylinder0300 m in
a baseball outfielder throws a 0150 kgbaseball at a speed of 400 ms and an initial angle of 320deg what is the kinetic
a 57 muf capacitor is charged with36times105 c what potential difference exists across
in an emergency stop to avoid an accident a shoulder-strapseat belt holds a 60-kg passenger firmly in place if the car
in a college homecoming competition 16 students lift asports car while holding the car off the ground each
vector a has polar coordinates 5 60oand vector b has polar coordinates 3135o what the scalar product of the two
a boy pushes a box that has a mass of 355 n up an incline ifthe boy exerts a force of 67 n along the incline what is
two 150-v batteries-with their positive terminals in thesame direction-are inserted in series into the barrel of a
how many moles of each reactant are used in the epoxidation of cholesterol assume the 3-chloroperoxybenzoic acid is 80
compare the amount of energy released by the complete combustion of 1 gallon of ethanol with the amount of energy
a 65 g bullet traveling at 290 ms penetrates a block of ice at 0degc and comesto rest within the ice assuming that the
a dewar flask filled with 100 l of liquid nitrogen is allowed to completely evaporate and warm up to room temperature
write a balanced equation for the reaction between aqueous solutions of calcium chloride cacl2 and sodium carbonate
the primary coil of a transformer makes 40 turns around the iron core and the secondary coil of that transformer makes
acetone ch3coch3 is a nonelectrolyte hypochlorous acid hclo is a weak electrolyte and ammonium chloride nh4cl is a
a single square loop of wire has a resistance of 2 ohm the lengthof each side of the square is 05m a magnetic field
a 60kg including equipment olympicski-jumper starts with pushes off from the starting gate agiving her an initial
given reaction 2nh3g 3cl2g ---gt n2g 6hclg you react 50 l of nh3 with 50 l of cl2 measured at the same conditions in
how many grams of methane ch4g must be combusted to heat 110 kg of water from 260 c to 890 c assuming h20l as a product
a car is towing a boat on a trailer the driver starts from restand accelerates to a velocity of 192 ms in a time of 27
some of the moles of hcl you add will react with sodium carbonate in the first reaction and the rest will react with
a viewing screen is separated from a double-slit by 12m thedistance between the two slits is 0030mm the second order
two moles of sucrose are dissolved in eight moles of water assume that the solution follows raoults law but that the