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a 5100 kg iceberg with density 931 kgm3 is afloat in seawater with density 1030 kgm3find the buoyant force on the
the number density in a container of neon gas is 470times1025m3 the atoms are moving with an rms speed of 640mswhat is
what is the normality of a 025m phosphoric acid solution question options 025n 050n 075n
which of the following is an experimental fact that valence bond theory cannot explain but molecular orbital theory can
about once every 30 minutes a geyser known as old faceful projects water 180 m straight up into the air use g 980 ms2
a hiker is wearing wool clothing of 040 cm thickness to keep warm her skin temperature is 39deg c and the outside
calculate the ph of a buffer solution that contains 010 m nah2po4 and 050 m na2hpo4 the ka of h2po4- is 63 x 10-8
water flows through a venturi meter with a pipe diameter of 100 cm and a constriction diameter of 56 cm the u-tube
a 10- kg mass is attached to a string wrapped around a shaft of negligible mass and having a 60- cm radius a
an interferometer is used to measure the length of a bacterium the wavelength of the light used is 650 nm as one arm of
a long distance runner starts at given place and runs around a circular track of 63m radius at a speed of 60ms in the
astronauts use a centrifuge to simulate the acceleration of a rocket launch the centrifuge take 200 seconds to reach
follow these steps to solve this problem two identical loudspeakers speaker 1 and speaker 2 are 20 m apart and are
a laser beam of unknown wavelength passes through a diffraction grating having 5460linescmafter striking it
find the maximun angle of a slope on which a parked car would not be able to slide down use the static coefficient of
a spring of k8 nm has a block of mass 15 kg attached to it on a frictionless table if the block is pulled a distance
a pendulum with a length of 185 cm is set to swinging1 what is the frequency of the pendulum hz2 what is the period of
an object of mass 120 kg and traveling 100 ms to the right collides with a second object of mass 240 kg traveling 130
a bullet with a mass of 250 grams is fired into a block with a mass of 250 kg hanging from a string if the bullet is
a devive consists of four balls just after the impact what is the angular speed of the
what is the pressure change in water going from a 32- cm-diameter pipe to a 23- cm-diameter pipe if the velocity in the
a ball is thrown downward from building 122 m tall with initial speed 380 ms what will velocity of this ball be as it
a certain electric motor draws a current of 46awhen connected to 120 vwhat is the motors power consumptionwhow much
the oxidation of ethanol ch3-h2c-oh produces acetaldehyde ch3-hco this reaction catalyzed by enzymes takes place in the
a girl delivering newspapers travels 2 blocks west 2 blocks north and then 5 blocks easta what is her resultant