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a speedboat starts from rest and accelerates at191 ms2 for 700 s at the end of this time the boat continues for an
the pendulum on a small grandfather s clock is used to regulate how fast the clock ticks the physical pendulum is
a 31 micro coulomb charge hangs from a string midway between two sheets and makes an angle of 10 degrees with the
a bicyclist makes a trip that consists of three parts each inthe same direction due north along a straight road during
a vertical concrete dam is built in the ravine between two hills the face of the dam slopes equally on both sides at an
a mass hanging at rest froma spring stretches the spring by 400 cm the mass is thenpulled down until the spring is
a sprinter explodes out of the starting block with an acceleration of214 ms2 which she sustains for 126 sthen her
the new england merchants bank building in boston is 152m high on windy days it sways with a frequency of 020hz and
a baseball is hit at an angle of 275 degrees and just clears the right field fence 87 meters away what was the overall
an 271 n object is moving to right when forces act on it two forces act in y direction up 32 n and 17 n one force acts
a machine part has the shape of a solid uniform sphere of mass 225g and diameter 350cm it is spinning about a
an object is placed 1076 mm to the left of a diverging lens where is the image located when the lens has a focal point
part a an electron with initial kinetic energy 33 ev encounters a square barrier with height 40 ev and width 022 nm
a rock is thrown from the edge of a cliff to the ground 160 m below the rockhas an initial velocity of 185 ms directed
three charges 26 mu c -49 mu c and-72 mu c are located at -021 m012 m 052 m -035 m and -046 m-034 m respectivelywhat is
the heating element of a clothes dryer has a resistance of127 ohms a voltage of 240 v is connected across the
in the bible noah is instructed to build an ark 300 cubitslong 500 cubits wide and 300 cubits high historical
the peak value of the ac current in a circuit is 60 a and peak value of the ac voltage applied to the circuit is 47 v
a 25 cm diameter metal sphere is glowing red but a spectrum shows that its emission spectrum peaks at an infrared
a skateboarder shoots off a ramp with a velocity of 66ms directed at an angle of 58 degrees above the horizontal the
if the only force acting on a 05kg mass are f1-2i-3jn and f28i2jn what is the magnitude of acceleration of the
a catapult with a radial arm 415 m long accelerates a ball of mass 187 kg through a quarter circle the ball leaves the
in a simple model for a radioactive nucleus an alpha particle m 664 10-27 kg is trapped by a square barrier that has
a spider hangs from a strand of silk whose radius is58x10-6 mthe density of the silk is 1100 kgm3when the spider moves
a converging lens is placed 300 cm to right of a diverging lens of focal length 100 cm a beam of parallel light enters