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what quantity of heat is required to raise the temperature of 450 grams of water from 15degc to 85degc the specific
an aircraft weighing 9130 n is accelerated at 90 mss for 120 seconds at which time the aircraft launches how much work
a 2043 kg satellite is in a circular orbit of 26273 miles 42300000m in radius the force keeping the satellite in orbit
some fish have a density slightly less than that of water and must exert a force swim to stay submergedwhat force must
an archer fish spies a meal of a grasshopper sitting on a long stalk of grass at the edge of the pond in which he is
a body travels from a to b with a uniform velocity of 2ms in 5s if the body returns from b to a with another uniform
a body travelling with uniform acceleration crosses two points a ampb with velocities 30ms amp 50ms the speed of the
a heavy meter stick has a rest mass of 1 kg when the meter stick is thrown past you you measure the mass to be 2kg
a 100ohm resistor is connected in series with a 1f capacitora what happens to the voltage measured across the resistor
a 129 gram sample of an unknown metal at 265degc is placed in a styrofoam cup containing 500 grams of water at 886degc
a certain truck is moving in an eastern direction and its load is 400nthe area that the vehicle is passing is an
a coil of 15 turns and radius 100cm surrounds a long solenoid of radius 200cm and 100 x 103 turnsmeter figure in
imagine youre standing on the surface of a shrinking planet if it shrinks to one-tenth its original diameter with no
a delivery driver is driving at 35 kmhr towards a siren havinga frequency of 350 hz the temperature of air is 25
five holes are drilled through a 10-m-long stick of uniformcross section a meter stick at 0 10 20 30 and 40 cm marks
what is the magnitude and direction of the force on each of two parallel wires that are separated by 001 m and each
a wire is supposed to be 010 millimeter in diameter laser light of wavelength 670 nm shining onto the wire creates a
a stellar atmosphere consists almost entirely of hydrogen assume that 50 of the hydrogen molecules are dissociated into
find the conductivity of a conduit with a cross-sectional area of 060 cm2nbspand a length of 15 cm given that its
the unit of force in the si system is the newton n which is defined in terms of basic si units as 1n1kgsdotms2 the unit
a 405 hz tuning fork and a piano key are struck together and no beats are heard when a 402 hz tuning fork and the same
the desperate contestants on a tv survival show are very hungry the only food they can see is some fruit hanging on a
a copper wire has a resistance of 0455 omega at 200degc and an iron wire has a resistance of 0492 omega at the same
two masses are connected by a light string running over a light pulley of negligible friction one mass is the first
at low pressures methane has a zlt1 and at high pressure zgt1 what is z what does it indicate and what does the z value