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an object initially at rest experiences an acceleration of17ms2 for 70s and then travels at that constantvelocity for
two 75 kg campers are in the middle of a creek in a 45 kg boat without a paddle all they have on board the boat is a
a thin cylindrical shell of infinite length and radius 260-cm hasa uniform surface charge density of 689-ncm2 what is
a submarine is at an ocean depth of 300 ma calculate the absolute pressure at the depth assume thatthe density of the
a proton accelerates from rest in a uniform electric field of 640nc at some later time its speed is 120 x 106msa find
a 500g block is released from rest and slides down africtionless track that begins 200m above the horizontal at
a 14 g bullet strikes and becomesembedded in a 130 kg block of woodplaced on a horizontal surface just in front of the
the femur is a bone in the leg whose minimum cross-sectionalarea is about 40 10-4 m2 a compressional force in excess
a speedboat moving at 300ms approaches a no-wake buoy marker 100 m ahead the pilot slowsthe boat with a constant
a student has six textbooks each 40 cm thick and 30 n inweight what is the minimum work the student would have to do to
a tuning fork generates sound waves from a frequency of 246 hznbsp the waves travel in opposite directions along a
determine the stopping distances for an automobile with aninitial speed 90 kmh and human reaction tim of 10s for
a spherical drop of water carrying a charge of 35 pc has a potential of 540 v at its surface with v 0 atinfinitya what
a solid conducting spherenbsp radius05 has a charge of 025nc distributed uniformly on its surface if point a is located
an oscillating spring and mass system performing shm has a maximumacceleration of a1 if the mass is increased by 50 and
a fluist assembles her flute in a room where the speed of sound is 342 ms when she plays the note a it is in perfect
a horizontal spring with spring constant k has a mass mattached to it and is vibrating horizontally on a friction less
which one of the following statements concerning simple harmonicmotion is falsea the maximum speed occurs at the
a very light rod with a length of 195m extends straight out fromone end of a meter stick the other end of the rod
a light beam strikes a piece of glass at a 60 degree incidentangle the beam contains 2 wavelengths 450 nm and 700 nm
a frictionless pendulum of length 3 m swings with an amplitude of10 degrees at its max displacement the potential
water is pumped into a storage tank from a well delivering 250 gallons of water in 300 seconds through a pipe of 100
air is trapped above liquid ethyl alcohol in a rigid container if the air pressure above the liquid is 110 atm
a small drop of water is suspended motionless in air by auniform electric field that is directed upward and has a
a worker is to paint the walls of a square room 800 fthigh and 120 ft along each side what surface area in squaremeters