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a 13 kg block is at rest on a level floor a 400g globof putty is thrown at the block so that the putty
an object undergoing simple harmonic motion takes 019 s to travel from one point of zero velocityto the next such point
a person sitting in a stationary boat notices the waterwaves passing by the bow of the ship once every 4 seconds
a dedicated sports car enthusiast polishes the inside andoutside surfaces of a hubcap that is a section of a sphere
a contact lens is made of plastic with an index of refractionof 160 the lens has a focal length of 230 cm and its
a resting adult of average size converts chemical energy infood into internal energy at the rate of 120 w called
if you put 1kg of glass in contact with an equal mass of water andits temperature drops 5 degrees by how much will the
at the intersection of texas avenue and university drive ayellow subcompact car with mass 950 kg traveling easton
auto companies frequently test the safety of automobiles byputting them through crash tests to observe rge integrity of
a 120 v electric coffeepot draws a current of 06 a what is the resistance of its heating
studies have shown that some people can detect 577 nm light with as few as 100 photons enteringthe eye per second what
a surfer is catching a wave suppose she starts at the top ofthe wave with a speed of 14 ms and movesdown the wave until
a 650kg elevator starts from rest and moves upwards for 3sec with aconstant acceleration until it reaches a cruising
high power lasers are used to cpmpress a plasma a gas ofcharged particles by radiation pressure a laser
a cylindrical fishing reel has a moment of inertia of i 659e-4kgm2 and a radius of 411 cm a friction clutch in thereel
a 014-kg pinecone falls 16m on the ground where it lands with aspeed of 13 msa what speed would the pinecone have
a positron q e moves at 43x107 ms in a magnetic field of magnitude 052 t the magnetic force on the positron has
a long straight wire carries a current of 880 a an electron traveling at 65x107 ms is 15 cm from the wire what force
a a singly charged ion of unknown mass moves in a circle of radius 130 cm in a magnetic field of 11 t the ion was
a 235 kg gold bar at255degc is placed in a largeinsulated 0800 kg glass container at 150degc with 200 kg ofwater at
gayle runs at a speed of 320 ms and dives on a sled initially at rest on the top of a frictionless snow covered hill
a tube is sealed at both ends and contains a 00100-m longportion of liquid the length of the tube is larger compared
a chain of length l and total mass m is released from restwith its lower end just touching the top of a table find the
a thermos contains 150cm3 of coffee at 85 celsius to coolthe coffee you drop two 11-g ice cubes into the thermos the