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1 what is the atomic weight of an element if 400 grams of it contain 298 x 1022 atomsa 202 u b 808 u c 808 u d 202 u e
a hardworking ant must supply 000805 n to pull a small piece of fruit at constant velocity over a distance of 960 cm up
cloud droplets cannot grow into rain droplets by condensation alone how would you have to alter the basic assumption of
calculate a alpha for a solution of ph 500 produced from sulfurous acid h2so3 ka1 172x10-2 and ka2 643 x
use ohms law to calculate the current in a heater with a heating element of 20 ohms when connected to a 110-v
when cars are equipped with flexible bumpers they will bounce off each other during low-speed collisions thus causing
when dealing with radical halogenation why does the most stable intermediate compound have the fastest reaction rate i
sewage at a certain pumping station is raised vertically by 530 m at the rate of 1 920 000 liters each day the sewage
1 you have nh4cl what if any experimental evidence do you have that the equilibrium is affected by the addition of hcl
an uncharged nonconductive hollow sphere of radius 110 cm surrounds a 160 microc charge located at the origin of a
which electrode of a voltaic cell the cathode or the anode corresponds to the higher potential energy for the
what is the escape speed for an electron initially at rest on the surface of a sphere with a radius of 15 cm and a
1 you have ch3cooh what if any experimental evidence do you have that the equilibrium is affected by the addition of
consider two infinite parallel plane sheets of charge separated by a distance l each sheet has the same charge density
youre riding on a carousel merry-go-round that is rotating at a constant 600 rpm initially you are standing at point a
a space station in the form of a wheel 100 m in diameter rotates to provide an artificial gravity of 210 ms2 for
standing waves are set up on two strings fixed at each end as shown in the drawing the two strings have the same
a certain light truck can go around a flat curve having a radius of 150 m with a maximum speed of 355 ms with what
during a chromatography experiment a student calculated two rf values they are a 62 and b 30 the solvent front for the
a parallel-plate capacitor has an area of 012 m2 and a separation of 12 cm a battery charges the plates to a potential
an artificial satellite circles earth in a circular orbit at a location where the acceleration due to gravity is 900
if 300g of hydrosulfuric acid is reacted with 300 g of silver nitrate calculate the mass in g of solid silver sulfide
astronomers discover an exoplanet a planet of a star other than the sun that has an orbital period of 347 earth years
determine the normal mode frequency of the lagrangian given by l12xdot2 ydot2-12omega21x2omega22y2 alphaxy where alpha
a planet of mass m 115 times 1024 kg is orbiting in a circular path a star of mass m 165 times 1029 kg the radius of