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a hot air balloon has a volume of 200 times 103 m3 when fully inflated and the air inside the balloon is always at
what is the ph of a buffer if 23 grams of sodium hydrogen phosphate and 10 g of sodium dihydrogen phosphate are added
a series rlc circuit is driven by a generator at frequency 1050 hz the inductance is 90mh the capacitance is 5 micro
a ladder of length l 22 m and mass m 140 kg rests on a floor with coefficient of static friction s 053 assume the
a flask contains 200 ml of 01m phosphate buffer that has a ph of 70 what volume of 01m naoh should be added to increase
a 0157-kg particle undergoes simple harmonic motion along the horizontal x-axis between the points x1 -0253 m and x2
mercury is often used as an expansion medium in a thermometer the mercury sits in a bulb on the bottom of the
you are assigned the design of a cylindrical pressurized water tank for a future colony on mars where the acceleration
a container of methane gas initially at 400 atm is heated to a temperature of 1500c at which the pressure is 450 atm
a 26-kg block is hanging stationary from the end of a vertical spring that is attached to the ceiling the elastic
a spring stretches by 00240 m when a 340-kg object is suspended from its end how much mass should be attached to this
a container of methane gas initialy at 700 atm holds a volume of 350 litres at a temp of 300c what is mass of methane
the reaction is first-order in h2 and second-order in no at a particular temperature what is the rate
in the figure shown the hanging object has a mass of m1 0445 kg the sliding block has a mass of m2 0750 kg and the
an argon-ion laser produces a cylindrical beam of light whose average power is 0790 w how much energy is contained in a
a 12 kg particle moves from an initial position r1 4i - 2j 3k m to a final position r2 7i - 3j -4k m while a force f
youve been given the task of designing a water couch-that one could lie on floating on a lake for instance-in the form
the solubility of ammonium bromide in water at 20 degrees celsius is 755g100g water its solubility at 50 degrees
what is the density of a metal that is placed in a graduated cylinder that contained 150ml of water resulting in a
an aricraft carrier has a mass of 8 x 107 kg and can cruise at 60 kmhwhat is the work required to stop itjwhat constant
a 2200 kg elevator is attached to a 1500 kg counterweight what power must the motor supply to raise the elevator at 05
a 782 kg car is pushed at a constant positive velocity in a flat parking lot whose coefficient of friction is 018 if
give structural formula dash condensed or bone-line for five constitutional isomers of molecular formula