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a certain substance has a heat of vaporization of 2975 kjmol at what kelvin temperature will the vapor pressure be 500
a railroad car of mass 23 104 kg moving at 300 ms collides and couples with two coupled railroad cars each of the same
a battery having an emf of 1110 v delivers 111 ma when connected to a 730 load determine the internal resistance of the
when gaseous f2 and solid i2 are heated high temperatuer the i2 sublimes and gaseous iodine heptofloride forms350 torr
a solid puck with radius r1 09 m and mass m 14 kg is sitting on a frictionless table a top view of the puck is shown
a heat pump with a coefficient of performance of 49 absorbs heat from the atmosphere at a rate of 30kw at what rate is
identical constant forces push two identical masses a and b continuously from a starting line to a finish line if a is
ricardo r and maria m are in a canoe that is stationary and floating on a calm lake they are 40 m apart symmetrically
a helmholtz coil is used to generate a uniform magnetic field suppose the helmholtz coil consists of two sets of
a boy runs 300 blocks north 400 blocks northeast and 500 blocks west determine the length and direction of the
a bomb initially at rest explodes into three fragments that move as shown the trajectories of all fragments are in the
two long straight parallel wires are separated by a distance of 211 cm each wire carries a current of 101 a in the same
a uniform solid disk has a radius of r 052 m and mass of m 55 kg and is free to rotate about an axis through its
sodium ions na move at 0855 ms through a bloodstream in the arm of a person standing near a large magnet the magnetic
the 15 kg balls are attached to the ends of a thin rod of length 420 cm and negligible mass the rod is free to rotate
the air temperature is 8000f during a thunderstorm and thunder was timed 463 s after lightning was seen how many feet
a 5000 g pot of water at room temperature 200c is placed on a stove how much heat is required to change this water to
two identical coaxial coils of wire of radius 397 cm are directly on top of each other separated by a 303 mm gap the
a circular armature coil is used in a motor with a uniform magnetic field of 180 t the coil has a diameter 95 cm a
consider a generator with a 350 turn coil on its armature and a uniform magnetic field of 54 t the diameter of the coil
the vertical deflecting plates of a typical classroom are a pair of parallel square metal plates carrying equal but
a 620 g basketball is pushed up a 30deg ramp the ball starts from rest and the length of the surface of the ramp is 5 m
in 1926 albert michelson measured the speed of light with a technique similar to that used by fizeau michelson used an
a 150 g trick baseball is thrown at 63 kmh it explodes in flight into two pieces with a 35 g piece continuing straight
an alpha particle charge 2e moves with velocity v 50i - 30j in a magnetic field b -40i 25j where b is in teslas and