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write balanced molecular total ionic and net ionic equations for the reaction of aqueous copper ii sulfate and aqueous
a large optical telescope with an aperture of diameter 26 m is used to study the moon what is the size of the smallest
calculate the size of the smallest object on mars that this telescope can resolve assume mars is at its closest
an aerosol can has an internal pressure of 385atm at 25 degrees celsius what temperature is required to raise the
a metal container which has a mass of 88 kg contains 151 kg of water a 24-kg piece of the same metal initially at a
a hot-air balloon has a volume of 875l what is the original temperature of the balloon if its volume changes to 955l
atmospheric pressure at the top of mt whitney in california is 440mmhg how many atmospheres is this and how many
calculate the molarity of a solution made by dissolving 0140 mol na2so4 in enough water to form exactly 800ml of
write a balanced chemical equation showing the formation of the salt na3po4 from the reaction of the appropriate strong
a helium-neon laser wavelength 630 nm is used in a single-slit experiment with a screen 75 m away from the slit if the
1 what are the sources of crude oil and some of its components2 why is cracking an important technological process3
a firehose 15 m long is uncoiled by pulling the nozzle end horizontally along a frictionless surface at the steady
a conical pendulum is formed by attaching a 410 g mass to a 13 m string the mass swings around a horizontal circle of
a copper storage tank containing dilute h2so4 at ph 01 is blanketed with hydrogen at 1 atm calculate the maximum cu2
a person stands at a point p relative to two plane mirrors oriented at 90deg how far away do the persons images appear
a sphere of radius r starts from rest and rolls without slipping along a curved surface dropping through a vertical
zn is immersed in a solution of cucl2 what is the reaction and at what activity ratio of zn2 cu 2 will the reaction
a 50kg block is put on top of a 65kg block to cause the top block to slip on the bottom one while the bottom one is
a helicopter propeller blade starts from rest and experiences a constant angular acceleration of 170 rads2 find the
the emf of a cell made of a zn anode and hydrogen cathode immersed in 05m zncl2 is 0590v what is the ph of the
a compact disk on a cd player rotates clockwise the disk completes one revolution in 0260 sa find the angular velocity
what is the ph of a solution formed by dissolving 0100 mol of an acid with a ka of 1750x10 to the -5th and 0200 mol of
a spherically spreading em wave comes from a 1200 w sourceat a distance of 50 m what is the intensitywhat is the rms
two blocks are in contact on a frictionless table a horizontal force f is applied to m2 if m1 136 kg m2 368 kg and f
a rotating fan completes 1000 revolutions every minute consider a point on the tip of a blade at a radius of 011 m