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oxygen o2 has a molar mass of 320gmola what is the root-mean-square speed of an oxygen molecule at a temperature of
partciles mass of each 2kg are placed at the 80 cm and 100 cm marks of a meter stick the mass of the meter stick is 3kg
2118 g of copper pellets are removed from a 286degc oven and immediately dropped into 1985 ml of water at 13degc in an
one mole of neon gas is heated from 364 kto 410k at constant pressurea calculate the energy q transferredto the gasjb
a heavy piece of hanging sculpture is suspended by a 90 cm-long 50g steel wire when the wind blows hard the wire hums
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
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
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