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a compressed-air tank carried by scuba divers has a volume of 680l and a pressure of 120atm at 20 degrees celsiuswhat
a helium balloon has a volume of 350l at 220 degrees celsius and 114atm what is its volume if the temperature is
an ac voltage source with a peak output of 200v is connected to a 50 ohm resistor what is the rate of energy dissipated
a small sphere that carries a charge of 635 c is whirled in a circle at the end of an insulating string the angular
at the start of a trip a driver adjusts the absolute pressure in her tires to be 251 x 105 pa when the outdoor
how would you prepare a liter of carbonate buffer at a ph of 1010 you are provided with carbonic acid h2co3 sodium
in a game of football outdoors on a cold day a player will begin to feel exhausted after using approximately 78x105 j
a 500-liter aluminum cylinder at 500degc is filled to the brim with gasoline at the same temperature if the aluminum
the melting point range is measure for two materials a and b for material a the melting point range is from 585 c to
raindrops fall 1400 m from a cloud to the ground if they were not slowed by air resistance how fast would the drops be
an electric vehicle starts from rest and accelerates at a rate of 19 ms2 in a straight line until it reaches a speed of
1 what would be a good primary standard for direct standardization of an hcl titrant2 what is the difference in the
an electron moving along the x axis has a position given by x 16 te-t m where t is in seconds how far is the electron
what wold you prodict for the relative reactivity of 4-trifluoromehylbenzaldehyde in this aldol condensation reaction
the fastest growing plant on record is the hesperoyucca whipplei suppose a plant of this type grows 23 m in 14 days
what is the balanced net ionic equation for precipitation of caco3 when aqueous solutions of na2co3 and cacl2 are
the earth can be approximated as a sphere of uniform density rotating on its axis once a day the mass of the earth is
the track near the top of your favorite roller coaster has a circular shape with a diameter of 29 m when you are at the
1 during an experiment a student mixed 145ml of a 0500m sodium fluoride solution with 156ml of a 0750m hydrofluoric
a string 13 m long with a mass of 39 g is stretched between two fixed points with a tension of 93 n find the frequency
in solid nickel the atoms are so tightly packed they touch each other using geometry and the equation 4r a212 and a
a copper k 390 jsmiddotmmiddotcdeg pipe with an outer radius of 0014 m runs from an outdoor wall faucet into the
draw all of the resonance forms of 4-methoxybenzaldehyde which contribute to the reducwd electrophilicity of the
your average speed on the first half of a car trip is 750 kmh how fast do you have to drive on the second half of the
a solution is made by combining 150 ml of 180 m acetic acid with 550 g of sodium acetate and diluting to a total volume