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a man pushes an 800 n crate a distance of 500 m upward along a frictionless slope that makes an angle of 30o with the
if a loop of chain is spun at high speed it can roll along the ground like a circular hoop without collapsing consider
a buffer solution consists of 15 moll of sodium acetate and 15 moll of acetic acid the ka of acetic acid is 18x10-5
ball at rest in your reference frame has a mass m a second ball with the same mass is moving with speed v and collides
intensity level prooduced by a jet airplane at a certain location is 150 dba calculate the intensity of the sound wave
the concentration of sodium cation in a 073 moll solution of sodium carbonate is which of the following note assume
in a rotor-ride at a carnival riders are pressed against the inside wall of a vertical cylinder 200 m in radius
the reaction between an antacid and a hydrochloric acid is given sodium hydrogen carbonate hydrochloric acid gives
a solenoid of length 56 cm and diameter 088 cm is wound with 167 turns per cm the current is decreasing at a rate of
the ka for hydrofluoric acid is 71x10-4 the percent ionization of hydrofluoric acid at a concentration is 043 moll is
the average density of the planet jupiter is 1327 kgm3 the acceleration of gravity on its surface is 2594 ms2 calculate
water is at rest at the bottom of a well of depth h 782 m a pump lifts mass at a rate of dmdt 119 kgminute from the
the original molarity of a solution of formic acid with a ka of 17x10-4 its ph is 452 at equilibrium is
a boy stands at the peak of a hill which slopes downward uniformly at angle phi at what angle theta from the horizontal
a small immersion heater can be used in a car to heat a cup of water for coffee or tea if the heater can heat 120ml of
a 300kg block starts from rest at the top of a 300 degree incline and slides a distance of 200m down the incline in
076 grams of acetic acid is solvated in enough water to make 50 ml of solution the ka for acetic acid is 18x10-5
a tire of radius r rolls in a straight line without slipping its center moves with constant speed v a small pebble
compare and contrast the accuracy and precision of at least three types of measurements used in your
a soprano sings the note c6 1046 hz across the mouth of a soda bottle to excite a fundamental frequency in the soda
a 020 kg mass at an angle of 40 degrees and a 0275 kg mass at an angle of 155 degrees determne the net force of the two
two masses are joined together by a massless rod of length 08 m what is the rotational kinetic energy of the
how long a piece of wire would you need to form a circular arc subtending an angle of 16 rad if the radius of the arc
how old is a bottle of wine if the tritium 3h content is 25 that of a new wine the half-life of tritium is 125
a dipole consists of two charges of opposite sign and each charge has a magnitude of 220e-18 c they are separated by