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a 30g dart is shot straight up at 10ms at the same instant a 24g ball of cork is dropped from 20m above the dartpart a
a chairlift has a length of 2 km a vertical rise of 100 m and it is operating at a constant speed of 8 kmh the chairs
a solution of a weak acid was tested with the indicators used in this exeriment the colors observed were as follows
a 315 cm focal length converging lens is 200 cm behind a diverging lens parallel light strikes the diverging lens after
write an equation for the diels- alder reaction of cyclopentadiene and 14
a student adds 137 grams of nickeliihydroxide powder to 100 l of distilled water at 25 degrees celsius with vigorous
two round rods one steel and the other copper are joined end to end each rod is 0760 long and 135 in diameter the
a series rcl circuit contains a 247- resistor a 195-f capacitor and a 602-mh inductor when the frequency is 2870 hz
an inductor has an inductance of 0013 h the voltage across this inductor is 20 v and has a frequency of 470 hz what is
a gas sample enclosed in a rigid metal container at room temperature 200 has an absolute pressure the container is
a 200 mole quantity of so2cl2 was placed in a 24l container initially there are no products in the container at
a coffee cup calorimeter ccal 1639x103 jdegc-1 contains 344 ml of water at a temperature of 187 degc an unknown metal
a highway curve of radius 600m is designed for traffic moving at a speed of 850 kmhr what is the correct banking angle
an arrow is shot at an angle of above the horizontal the arrow hits a tree a horizontal distance away at the same
one way to measure on another planet or moon by remote sensing is to measure how long it takes an object to fall a
a whistle of frequency 520 hz moves in a circle of radius 800 cm at an angular speed of 120 rads what are the lowest
a 50 kg rock climber accidentally falls from the side of a rock and freefalls until she is stopped by her 9 m saftey
a circular saw blade accelerates from rest to an angular speed of 3620 rpm in 63 revolutionsa find the torque exerted
point particle a with mass ma is moving in the positive x direction and collides with stationary point particle b with
the potential difference between two parallel conducting plates in vacuum is 165 v an alpha particle with mass of
an electron is moved from point a to point b in a uniform electric field and gains 528times10-15 j of electrostatic
in the path shown below the locations of a car driving around a track are shown at equal time intervals where t 20 s
two boats are heading away from shore boat 1 heads due north at a speed of 290 ms relative to the shore relative to
consider the following figure the four charges are at the corners of a square take q 108 microc and q 230 microca in
as you stand by a railroad track a train passes with its whistle blowing as it passes you hear a frequency shift