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a person makes a quantity of iced tea by mixing 500g of hot tea basically water with an equal mass of ice at its
a 150g copper bowl contains 220g of water both at 20 degrees celsius a very hot 300g copper cylinder is dropped into
a rope is utilized to pull a 357 kg block at constant speed 486 m along a horizontal floor the force on the block from
through a rockslide a 770 kg rock slides from rest down a hillside that is 500 m long and 300 m high the coefficient of
a drop of water on a countertop reflects light from a flower held26 cm directly above it the flowers diameter is 20 cm
a beam of high-energy protons emerges from a cyclotron is there a magnetic field associated by these particles why or
a subatomic particle created in an experiment exists in a certain state for a time of deltat 80 x 10-20 s before
a roller-coaster car has a mass of 500kg when fully loaded by passengers the car passes over a hill of radius 15 m at
a 100 kg black is released from point a the track is frictionless except for the portion among points b and c which has
a 14-g bullet is fired horizontally into a 110-g wooden block that is originally at rest on a frictionless horizontal
a man and a box are at rest on a horizontal frictionless surface similar to an ice skating rink only less friction
a radioactive phosphorus nucleus by atomic number 15 and mass number32 beta decays by emitting an electron and an
the velocity of a diver now before hitting the water is -89 ms where the minus sign indicates that her motion is
a physics student on planet exidor throws a ball and it follows the parabolic trajectory shown in the figure the balls
several bacteria are propelled by biological motors that spin hair-like flagella a typical bacterial motor turning at a
a person stands in a stationary canoe and throws a 520 kg stone with a velocity of 785 ms at an angle of 350 degrees
a sinusoidal voltage deltav 100 v sin 160t is applied to a series rlc circuit with l 50 mh c 100 muf and r 38
1 a long solenoid of length 8 m with a cross-sectional area of 50 x 10-5 m2 contains a total of 52000turnsa compute the
an electric field of 148 kvm and a magnetic field of 0387 t act on a moving electron to produce no net force if the
a soap film n 133 is 475 nm thick and lies on a glass plate n 152 sunlight whose wavelengths in vacuum extend from
a horizontal force of 50n pushes a 50kg block against a vertical wall the block is initially at rest if mu s 60
the image behind a convex mirror radius of curvature 72 cm is located 21 cm from the mirrora where is the object
a drop of water on a countertop reflects light from a flower held310 cm directly above it the flowers diameter is 220
a diffraction grating has60x105 linesm find the angular spread in the second-order spectrum among red light of
a uniform ladder of length l and weight w is leaning against a vertical wall the coefficient of static friction among