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ethylene glycol c2h4oh2 is a colorless liquid used as automobile antifreeze if the density at 20 degrees celsius of a
a block with a mass of m is resting on a 20 degree slope the block has coefficients of friction 081 and 055 with the
consider a wheatstone bridge suppose a resistance rx is istalled as the unknown and the bridge is balanced giving a
find the equilibrium partial pressures of a and b for each of the following different values of kpconsider the
the cell potential of the following electrochemical cell depends on the gold concentration in the cathode half-call
a sample of carbon monoxide co occupies a volume of 350 ml and exerts a pressure of 1020 torr at 25degc if the volume
a string that is under 470n of tension has linear density 580gm a sinusodial wave with amplitude 270cm and wavelength
a block of mass m 210 kg slides down a 300deg incline which is 360 m high at the bottom it strikes a block of mass m
two tugboats pull a disabled supertanker each tug exerts a constant force of 220times106 n one at an angle 120 west of
calculate the change in ph when 800ml of 0100m hclaq is added to 1000ml of a buffer solution that is 0100m in nh3aq and
a car moving with an initial speed v collides with a second stationary car that is one-third as massive after the
determine the molar mass of chloroform gas if a sample weighing 0389 g is collected in a flask with a volume of 102 cm3
a 70kg skateboarder comes over the top of a hill at 60ms and reaches 12ms at the bottom find the total work done on the
you slide a box of books at constant speed up a 30 degree ramp applying a force of 170n directed up the slope the
a mixture of he and ne at a total pressure of 095 atm is found to contain 032 mol of he and 056 mol of ne the partial
in a molecule of dihyroxyacetone phosphate what is the oxidation state of carbon number
a 1 kg mass initially at rest compresses a spring spring constant 2500 nm by 02 m and is released the mass slides along
what is the ph of aqueous solution consisting of 0006m of acetic acid and 0008m of sodium
a gas sample has a volume of 450 l when the temperature is 28 oc and the pressure is 100 atm what will be the new
a hockey puck is swung at the end of a very slight 30 cm long string in a horizontal circle if the speed of the puck is
in basic solution cro42- oxidizes hsno2- to hsno3- and is reduced to cro2- write the balanced net ionic equation for
balance the following formula unit equation what is the sum of all of the coefficients do not forget coefficients of
a 765 kg car is being pushed along a flat parking lot at a constant speed of 198 ms the coefficient of friction between
in the first 31 seconds of a bobsled run the 45 kg sled is pushed until it reaches a speed of 114 ms the flat surface
a 500 m long rigid beam with a mass of 1100 kg is supported at each end a 550 kg student stands on the beam 140 m from