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you are in charge of regulating the temperature of the swimming pool for the next olympic games the water in the pool
one of the reactions used in this lab actually occurs in two discrete steps shown below what is the overall net
two astronauts comparing lunches one has an apple and the otherhas an orange they decide to trade astronaut 1 tosses
a projectile is fird with an inital speed ofvi20ms at an angle theta30o with the horizontal finda the values of vxi and
a sample of copper sulfate pentahydrate cuso4 5h2o contains 3782 g of cu how many grams of oxygen are in this same
water density 1x103 kgm3 flows at 10 ms through a pipe withradius 0030 m the pipe goes up to the second floor of
a student carried out a simple distillation on a compound known to boil at 124 degree c and reported an observed
a compound contains only carbon hydrogen and oxygen combustion of 730 mg of the compound yields 1068 mg of carbon
at rest a cars horn sounds the note a 440hz the horn is sounded while the car is moving at a velocityv a bicycle is
buffer capacity refers to the amount of acid or base a buffer can absorb without a significant ph change it is governed
two satellites of the same mass are in circular orbits of differentradii above the earths equator satellite a is in a
you are in charge of a cannon that exerts a force 17900 n on a cannon ball while the ball is in the barrel of the
why is it impossible for 100 pure ethanol to be obtained from fractional distillation of the fermentation
what is the longest wavelength of light that can break the o-h bond the bond dissociation energy of an o-h bond is
a polar bear of mass 327 kg stands on an ice floe 129 cm thick what is the minimum area of the floe that will just
a 350g air track cart on a horizontal air track is attached to astring that goes over a pulley with a moment of inertia
12cl2g32f2g rarrclf3gthe bond energies of cl2 and f2 are 242kjmol and 155kjmol respectively calculate the bond energy
a projectile is shot from the surface of earth by means of a verypowerful cannon if the projectile reaches a height of
consider a balloon of volume 21m3 that contains 39 moles ofhelium gas at a temperature of 288 k ifthe gas is compressed
draw lewis structure for one important resonance form of hno3 hono2 include all lone pair
when 150 ml of 0400 m h are mixed with 200 ml of 0500 m oh- the final temperature of the solution is 265degc what was
a motor mass of 180kg sits on a horizontal 225 m masslessplank the motor is 100 m from one end of the plank find the
the melting point range is measure for two materials a and b for material a the melting point range is from 585 c to
two blocks of mass 700 kg and 300 kg are placed in contact withone another on a smooth horizontal surface a cosnstant
write a complete set of quantrum numbers nl and m that quantum theories allows for each of the following orbital a 2p