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when ammonia gas nh3 is passed over hot liquid sodium metal hydrogen gas h2 is released and sodium amide nanh2 is
a 100 cart is moving down an inclined plane at 130 ms the cart collides with a stationary object and rebounds with a
boron sulfide b2s3 reacts violently with water to form dissolved boric acid h3bo3 and hydrogen sulfide gas what is the
one side of the roof of a building slopes up at 430deg a roofer kicks a round flat rock that has been thrown onto the
which of the following is the function of avalvea regulates the direction of the flow of blood through theheartb
an object is thrown straight upwards with a speed of 408 ms from the top of a 592 m tall building what is the maximum
when solid mercury ii is heated it forms solid mercury ii oxide and gaseous nitrogen dioxide and oxygen what is the
1 what is the significance of rfrelative to front values what information can be deduced about the molecules separated
the helicopter in the drawing is moving horizontally to the right at a constant velocity the weight of the helicopter
a spherical capacitor contains a charge of 330nc when connected to a potential difference of 250 v if its plates are
a large circular capacitor with a radius of 5 m is separated by 3 mm of aira what is its capacitancefb suppose 9 v is
a 12000 kg car is initially traveling at 200 ms it swerves to avoid running into a baby deer only to run into a parked
a 1200 kg frictionless roller coaster starts from rest at a height of 22 m what is its kinetic energy when it goes over
consider air and water as respiratory media which contains agreater concentration of oxygen which takes more energy to
a woman with a mass of 70 kg climbs a set of stairs that are h 3 m high how much gravitational potential energy does
a solution composed of an equal number of moles of acetone and chloroform has a vapor pressure of 250 torr at 35
a car with the mass of 15000 kg initially moving to the right collides with a bus that has a mass of 50000 kg before
given a vapor pressure of toluene of 21 mm hg at 760 mm hg what is the equilibrium concentration for
a radio-controlled car increases its kinetic energy from 8 j to 10 j over a distance of 5 m what was the average net
1 once population size is reduced by habitat fragmentation the keyfactor driving the species toward extinction isa too
a 150m cylindrical rod of diameter 0450m is connected to a power supply that maintains a constant potential difference
how much work is required to bring three protons initially infinitely far apart to a configuration where each proton is
immunoglobulin gigg formerly called gamma globulin is a principle antibody in blood serum a 0955 gram sample of