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a 6-kg bowling ball rooling at 5ms strikesa stationary 4-kg bowling ballif ball number one is moving forward at 2ms
when 232 ml of 011 m hcl are added to 500 ml of a 017 m solution of a weak monoprotic base the ph of the solution is
write the cell reaction for the combination of these half-cell reactions that leads to the largest positive cell
in the figure below projectile particle 1 is an alpha particle and target particle 2 is an oxygen nucleus the alpha
in the figure below block 1 of mass m1 slides from rest along a frictionless ramp from height h 230 m and then
the naoh solution with a concentration of 188m is used to titrate a diprotic acid of unknown concentration 2500 ml of
a 45kg ham is thrown into a stationary 15-kg shopping cartat what speed will the cart travel if the ham had an initial
a 284 g sample of c2h5oh is burned in a calorimetry containing 10 kg water the temperature of the calorimetry and its
on a particular afternoon in houston the nitrogen n2 molecules in the air have an rms speed of 511 ms what is the rms
to standardize a solution of naoh one uses a primary standard called potassium hydrogen phthalate khp it is a
the atmosphere on mars is almost all carbon dioxide co2 and has a pressure of about 69times102 pa much less than that
what is the concentration of kmno4 when you mix 2 ml of 160 m kmno4 with 10 ml of 250 m oxalic acid assuming that it
sodium metal reacts with water to produce hydrogen gas and sodium hydroxide according to the chemical equation shown
a cube of wood and a cube of concrete each 017 m on a side are placed side by side one of the long faces of the
a block of iron at 430degc has mass 230 kg if 350times104 j of heat are transferred to the block what is its resulting
an athlete runs 400m which is exactly one loop on an olympic stadium making consecutive 100m distances in 101 103 102
determine the concentrations of the following ionic species present in a 0333 m solution of the diprotic acid h2so3 for
a stone tosses at an angle of 60 degrees to the horizontal from the roof of a building at 10 ms hits the ground in 3s
the change in the gibbs energy of a certain constant-pressure process as a function of temperature was found to fit the
a particular engine has a power output of 427 kw and an efficiency of 222 the engine expels 7236 j of energy as heat in
the addictive painkiller morphine c17h19no3 is the principal molecule in the milky jiuce that exudes from unripe poppy
a spherical water drop 37 m in diameter is suspended in calm air due to a downward-directed atmospheric electric field
the size by thef an atom is sometimes considered to be measured by density of the radius of a sphere that contains 90
a diffraction grating 15 mm wide produces the fifth order pie4 with light wavelength 650nm on the screen 80 mm away
calculate the concentrations of hydroxide and hydronium ions in a solution prepared by dissolving 0308 g of solid naoh