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the tub of a washer goes into its spin cycle starting from restand gaining angular speed steadily for 900 s at which
a 2900 kg truck traveling north at38 kmh turns east and accelerates to58 kmha what is the change in the trucks kinetic
a standard solution of 0243 m naoh was used to determine the concentration of a hydrochloric acid solution if 4633 ml
the engery used by a human while running is approximately proportional to the speed if we expressed the energy used by
a sample of gas occupies a volume of 537 ml at 0776 atm and 79 oc calculate the temperature of the gas if its volume is
a light ray of lambda 410 nmenters at an angle of incidence of 376o from air into ablock of plastic its angle of
a 13 kg block of ice at -30oc is placed in thermalcontact with a 7 kg piece of al at 280oc determine how much ice melts
if the frequency of the ac voltage across an inductor is doubled the inductive reactance of that inductor decreases
unpolarized light passes through two polarizers in turn withpolarization axes at 45deg to each other what is the
in a youngs double-slit experiment two rays of monochromaticlight emerge from the slits and meet at a point on a
the water supply of a building is fed through a main pipe900 cm in diameter a 200 cm diameterfaucet tap located 190 m
on a roller coaster ride the total mass of the cart - with passengers included - is 290 kg peakk is at 445 m above the
to reach the center of teh gym ceiling a 500n student tightroper walks to the center of a rope strung above the gym if
two flat surfaces are exposed to a uniform horizontal magneticfield of magnitude 065 t the first surface is tilted at
suppose a 10 ml sample of solution is to be tested for cl- by adding 2 ml of 15 m agno3 what is the minimum number of
a sphere of radius r starts from rest and rolls withoutslipping along a curved surface dropping through a
why does the quantum mechanical description of many electron atoms make it difficult to define a precise atom
on a frictionless horizontal surface a 150 kg mass travelingat 350 ms collides with and sticks to a 300 kg mass that
a 392-kg boy riding a 267-kg skateboard at a velocity of 537 ms across alevel sidewalk jumps forward to leap over a
a sample of gas occupies a volume of 459 ml at 0736 atm and 29 degrees celsius calculate the volume of the gas if its
a roller ocaster descends 35 meters in its initial drop and then rises 23 meters before going over the first hill if a
in 2008 chinas tainted milk scandal spreaded around the world this major issue is caused by the melamine-contaminated
a particle of charge q e moves in a circle of radius 046m with speed v 2800times107 mstreating the circular path as
two stars are 20 x 1011 m apart and are equallydistant from the earth a telescope has an objective lens with adiameter
an object is 927 cm from the surface of a reflective spherical christmas tree ornament 838 cm in diameter what is the