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a transverse harmonic wave travels on a rope according to the following expression yxt 015sin22x 174t the mass
a 1000 kg car is pushed up a 175 degree incline for a distance of300 m at a constant speed assume the applied force is
two point charges are fixed on the y axis a negativepoint charge q1 -28microc at y1 025m and a positive point charge
water flows through a venturi meter with a pipe diameter of 90 cm and a constriction diameter of 56 cm the u-tube
ammonia is produced using the haber process in which nitrogen and hydrogen combine n2g 3h2g gt 2nh3g how many grams of
a seagull flies at a speed of 10ms directly into the wind knowing that it takes the bird 25 min to travel 8km relative
a 1484-kg car is moving westward with a speed of 207 ms and a 2888-kg truck is traveling east with a speed of 159 ms
on a trip of 287 miles a driver maintains an average speed of 850 kmhr how many minutes does the trip
a speaker fixed to a moving platform moves toward a wall emitting a steady sound with a frequency of 225 hz a person
a bird is flying around the world at a rate of 885 ftsec how many days will it take to complete its journey
a person stands at a point 510m in front of the face of a sheer cliffnbsp if the person shouts how much time will
the concentration of a drug in the body is often expressed in units of milligrams per kilogram of body weight the drug
a steel cable with total length 20m and mass 100kg is connected to two polesnbsp the tension in the cable is 2000n and
a point charge of q is placed at the center of a square and asecond point charge of -q is placed at the upper-left
a point source of light illuminates an aperture 400 away a 170 -wide bright patch of light appears on a screen 200
a 10-c charge is 15 m from a second charge and the force betweenthem is 10 n what is the magnitude of the second
a tennis ball is thrown out a window 28m above the ground at an initial velocity of 150 ms and 20 degrees below the
a sled of mass 8 kg is on a frictionless slope inclined at 35degrees to the horizantalit is pulled by a rope that makes
if it takes 917 min for the concentration of a reactant to drop to 20 of its initial value in a first-order reaction
consider a length of pipe in air take the velocity of sound in air to be 343 msa calculate the length for a pipe that
the fundamental frequency of an open pipe corresponds to middle e 3296 hz on the chromatic musical scale the third
you dissolved three salts in the previous lab nacl cacl2 and alcl3-6h2o which of these three on a per gram basis will
a wooden block slides directly down an inclined plane at a constant velocity of 60 ms how large is the coefficient of
a teacher sits on a freely rotating stool holding two weights each of mass 260 kg when her arms are extended