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you stand on a frictional platform that is rotating at 13 revs your arms are outstretched and you hold a heavy weight
a gamma ray photon produces an electron-positron pair each with a kinetic energy of 210 kev what was the energy and
x-rays with an energy of 300 kev undergo compton scattering from a target the scattered rays are deflected 42 degrees
as a logging truck rounds a bend in the road some logs come loose and begin to roll without slipping down the
a microwave oven operates at 24 ghz with an intensity inside the oven of 2350wm2 what is the amplitude of the
a cd originally at rest reaches an angular speed of 39 rads in 48 sa what is the magnitude of its angular accelerationb
a swimmer swims north at 35 ms relative to still water across a river that flows at a rate of 15 ms from west to easta
a uniform solid disk with a mass of 20 kg and 20 cm in diameter is rotating about an axis through its center at 200 rpm
a violinist is tuning her instrument to concert a 440 hz she plays the note while listening to an electronically
one end of a 145 m-long wire having a total mass of 0600kg is fastened to a fixed support in the ceiling and a 110kg
a military gun is mounted on a railroad car m 1419 kg as shown in the figure below there is no frictional force on the
two radio frequency point sources separated by 18 m are radiating in phase at a wavelength of 060 m a detector moves in
a puck of mass m1 150 kg slides in a circle of radius r 200 cm on a frictionless table while attached to a hanging
a cylindrical bucket open at the top is 280 cm high and 100 cm in diameter a circular hole with a cross-sectional area
a ball is thrown horizontally with the speed of 15 ms from the top of a building it takes the ball 5 s to land on the
a 075 kg cart has been attached to a spring the cart is moved to the right by 20 cm find the spring constant what is
two starships the enterprise and the constitution are approaching each other head-on from a great distance the
a television is tuned to a station broadcasting at a frequency of 850 107 hz for best reception the rabbit-ear antenna
two steel wiresof the same length and different radii are connected together end to end and tired to a wall an applied
a very fast-moving train car passes you moving to the right at 050c you measure its length to be 14m your friend david
how many electrons flow through a light bulb each second if the current through the light bulb is
a cars starter draws 50a from the cars battery when starting up if the start up time is 15s how much electrons pass a
a river with the width of 800 m flows due south with a speed of 20 ms a man steers a motorboat across the river his
an led is constructed from a pn-junction based on a certain ga-as-p semiconducting material whose energy gap is 19 ev
a rocket passes earth and travels to a star 80 light-years away the earth hand the star are in the same frame of