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a playground merry-go-round is a disk of radius 40 m and mass 50 x 102 kg initially stationary if a child of mass 48 kg
a gaseous fuel mixture stored at 745mmhg and 298 k contains only methane ch4 and propane c3h8 when 115l of this fuel
a 160l tank contains 0430kg of helium at 160c the molar mass of helium is 400gmolhow many moles of helium are in the
a 150 kg glider attached to the end of an ideal spring with force constant k 300 nm undergoes simple harmonic motion
a 25ml sample of 0200 m hco2haq is titrated with 0100 m koh aq what is the ph at the equivalence point ka of hco2h 18
a railroad car of mass 33 104 kg moving at 450 ms collides and couples with two coupled railroad cars each of the
a mortar crew is positioned near the top of a steep hill enemy forces are charging up the hill and it is necessary for
the robot hooru is lost in space floating around aimlessly and radiates heat into the depths of the cosmos at the rate
the displacement vectors 385 cm at 150deg and 230 cm at 620deg both start from the origin and form two sides of a
1 the pressure in a traveling sound wave is given by p 16 pa sin 130 m-1x - 375 s-1ta what is the pressure
aqueous ammonium chloride and aqueous leadii nitrate express your answer as a chemical equation identify all of the
is it necessary to use the same solvent to dissolve the sample as is used to develop the tlc platetlc
a transparent oil with index of refraction 121 spills on the surface of water index of refraction 133 producing a
suppose you aim to suspend in air a perfectly reflecting 4cmx4cm surface with mass m 000045kg what intensity of light
1 the length of a simple pendulum is 079 m and the mass of the bob at the end of the cord is 024 kg the pendulum
in an experiment to study magnetic induction in the north pole of a permanent magnet is moved left to right toward a
if sodium hydroxoide has a h of 42 x 10 -10 then what is its oh- ph and poh if hydrochloric acid has a poh of 115 then
a small flywheel starts from rest and spins up to speed in 10 seconds during this time it completes a total of 300
an undamped 223-kg horizontal spring oscillator has a spring constant of 243 nm while oscillating it is found to have a
400 gram block attached to the end of an ideal spring horizontalwith force constant k10 km undergoes simple harmonic
1 if in joules paddlewheel experiment a block of mass 10 kg is allowed to fall through 225 meters and the mass of the
near the surface of the earth a beanbag is thrown at an angle 45 from the top of a building a height h above the
a 0460-kg toy is undergoing shm on the end of a horizontal spring with force constant k 500 nm when the object is 0012
0550-kg glider attached to the end of an ideal spring with force constant k 440 nm undergoes shm with an amplitude
refrigerant r-134a flows through a refrigeration system at a rate of 012 kgs at the entrance to the adiabatic