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a 500kg block of ice is sliding across a frozen pond at 200msnbsp a 760n force is applied in the direction of
in some places insect zappers by their blue lights are a familiar sight on a summers night these devices utilize a high
research the mirror and optical system of the hubble space telescope construct a scale drawing of the optical system
two converging lenses a by a focal length of 20 cm and b with a focal length of 50 cm are placed 14cm apart an object
in a single-slit diffraction pattern on a flat screen the central bright fringe is 09 cm wide when the slit width is
in a lightning bolt 15 c of charge flows during a time of 15 10-3 s assuming that the lightning bolt can be represented
assumed that for the couple in the figure below you were told that the girls mass was equal to that of the boy the boy
two rigid rods are oriented parallel to each other and to the ground the rods carry the similar current in the same
a tarantula is sitting 45 m in front of the concave spherical mirror by radius of r14m1 construct a ray diagram to
you are traveling in a spaceship at a speed of 056c away from earth you send a laser beam toward earth traveling at
a small ball is attached to one end of a spring that has an unstrained length of 0188 m the spring is held with the
a robot holds a 20 meter long steel wire of diameter 2 cm that has a load of 25000 n on it how much will the wire
a thin film of alcohol n136 lies on a flat glass plate n151 the film thickness is unknown but is determined by some
the shock absorbers in the suspension system of a car are in such bad shape that they have no effect on the behaviour
a spaceship approaching a planet at a speed of 020c fires a probe toward a planet observers on the planet see the probe
with what speed should a muon travel so that its correct relativistic momentum is 80 percent greater than the value
assume you are standing on a straight high way and watching a car moving away from you the air is perfectly clear and
a resistor inductor and capacitor are linked in series each with effective rms voltage of 65 v 140 v and 80 v
the profile of a transverse harmonic wave on a long taut nylon thread is described in si units by the function y 004sin
compute the inductance in a coil that has a voltage of 5 volts and change in current of 5 amps and a change in time of
in a four-dimensional universe a material has a linear coefficient of thermal expansion alpha3010-8c-1 a
a person is having trouble seeing bifocals must be prescribed for him his far point is 780 cm and his near point is 570
a fruit fly sits in front of a lens the lens forms a virtual image of the fly 20 cm from the lens the image of the fly
a 560kg mass is pushed against a spring k2000nm such that the spring is compressed 12 cm the mass is released slides150