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if the yellow molecules have a molecular mass of 50 rm amu what is the molecular mass of the blue
a block of mass 341 kg is attached to a spring k319 nm by a rope that hangs over a pulley of mass m682 kg and radius
an atom of the element of manosium has energy levels 12 and 3 with sucessively higher energy when the atom makes the
starting with solid sodium chloride houw would you make one liter of 2000 ppm sodium chloride
a force platform is a tool used to analyze the performance of athletes measuring the vertical force that the athlete
starting with solid sodium chloride how would you make one liter of 2000 ppm sodium chloride
air is flowing through a duct the atmospheric pressure is 730 mm hg what is the absolute pressure of the air in inches
what is the mole ratio for magnesium oxide what is its mass ratio are they the same how do they
a vertical spring is 100 cm long when supporting a 200 kg mass and it is 120 cm long when supporting a 320 kg mass
how much will the temp change when 740grams of iron stainless steel aluminum absorbs 1210 cal of heat
if you mix 50ml of 01m tris acid with 60ml of 02m tris base what will be the resulting
consider the motion of an apple and the earth as the apple falls to the ground if the apple begins at the top of a tree
when a solution of hydrogen peroxide h2o2 is put on a cut bubbles producing water and oxygen gas according to the
a man standing154m in front of a shaving mirror produces an inverted image200cm in front of it how close to the mirror
1 determine hvap for a compound that has a measured vapor pressure of 243 torr at 273 k and 135 torr at 325 k2
a dedicated sports car enthusiast polishes the inside and outside surfaces of a hubcap that is a section of a sphere
a 40-year-old manager at a prominent legal firm in la experiences abdominal pain post lunch he goes to the restroom a
a gass has 100 j of energy in the form of heat is transfered to a system and the system does 150 j of work what is the
an open railroad car of mass 2496 kg is coasting with an initial speed of 17 ms on a frictionless horizontal track it
sulfur-38 has an atomic mass of 380 and a half-life of 287 h how long does it take for 9999 of a sample of sulfur-38 to
two blocks of weights 450 and 830 n are connected by as massless string and slide down an inclined plane making an
because of its semiconducting properties cds is sometimes used in electronic devices the band gap energy for cds is 240
a 130 horizontal beam is supported at each end a 310 piano rests a quarter of the way from one endwhat is the vertical
how many moles of solute particles are present when 025 moles of caso4 is dissolved in