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two objects with masses of 400 kg and 500 kg are connected by a light string thatpasses over a frictionless pulleya
a steel train rails are laid in 122 m -long segments placed end to end the rails are laid on a winter day when their
in the figure below the cube is 200 cm on each edge four straight segments of wire-abbccd andda-form a closed loop that
your friend needs advice on her newest acoustic sculpture she attaches one end of a steel wire of diameter 398 mm and
two neutrons are in an infinite square well with l20 fm what is the minimum total energy that the system can have
in the figure below a ldquosemi-infiniterdquo nonconductingrod that is infinite in one direction only has uniform
the most intense beam of light that can propagate through dry air must have an electric field whose maximum amplitude
the current flowing in a solenoid that is 23 cm long and has a radius of 2 cm and 300 turns decreases from 2 a to 1 a
a man holds a pail of water by the handle and whirls it around avertical circle of radius 084 m at constant speed what
an ac power source with vm 220 v and f 600 hz is connected in a series rlc circuit the resistance r inductance l and
a pacific north west home has a solar photovoltaic pv systemthat produces 1045 mwh of usable electricity peryear their
two point charges q1 40 c and q2 -80 c are placed along the x-axis at x1 0 m and x2 020 m respectively what is the
amotorist drives along a straight road at a constant speed of 150ms just as she passes a parked motorcycle officer the
the mass of hot-air balloon and its occupants is 320 kg excluding the hot air inside the balloon the air outside the
an airplane propeller is 308 in length from tip to tip and has a mass of 142 when the airplanes engine is first
a light string is wrapped around a spool of radius 35 cm shape of spool is unknown thus you do not know moment of
three capacitors are connected in seriesnbsp the equivalent capacitance of this combination is 300mufnbsp two of the
a clarinet has a fundamental frequency of 147 hz and when played has one end closeda how many harmonics appear below
there is a 12 m distance between a crest and an adjacent trough in a series of waves on the surface of a lake in 30 s
a thin film of plastic n 143 coats a piece of glass n 16 what is the minimum thickness of the film for which 500 nm
an inspector wants a mirror that produces an upright image with magnification of 75 when it is located 140 mm from
a pilot whose mass is 850 kg makes a loop-the-loopin a fast jet assume that the jet maintains a constant speed of105 ms
an 1100 kg airplane starts from rest 71s later it reaches its takeoff speed of 40ms what is the average acceleration of
a bicyclist is finishing his repair of a flat tire when a friend rides by with a constant speed of 35 ms two seconds
four identical charges 16 muc each are brought from infinity and fixed to a straight line each charge is 032 m fromthe