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a wheel starts at rest and takes 300 s to rotate 370 revolutions at which point its angular velocity is 980 rads what
a 5000 ml solution of 00273 m formic acid ka 18 x 10-4 is titrated witha 00373 m solution of sodium hydroxide as a
a 0091 kg solid cylinder with a radius of 174 cm is placed at the top of a 30ordm inclined plane of height 661 cm if
at a certain temperature the ksp for caco3 is 48 x 10-9 the solubility of caco3 in grams per liter isa 48 x 10-9 glb 69
a buffer is prepared by mixing 500 ml of 150 m ch3cooh with 250 ml of 100 m ch3coona what is the ph of the buffer
a student sits on a rotating stool holding two 700 kg objects when his arms are extended horizontally the objects are
a 500 ml solution of nh3 was titrated with 0100 m hno3 the volume of titrant required to reach the equivalence point
the eyepiece of a refracting astronomical telescope has a focal length of 9cm the distance between objective and
0460 mol of nocl is placed in a 100 l reaction vessel at 700 k and after the system comes to equilibrium the
a hoop and a disk both of mass 2 kg and radius of 03 m roll without slipping up a straight incline with an initial
a 500-ml solution containing ni2 and zn2 was treated with 250 ml of 0045 2 m edta to bind all the metal the excess
the ceiling of a classroom is 375m above the floor a student tosses an apple vertically upward releasing it 05m above
a 100 l tank contains 0350 atm of nh3 g at 221 c if the entire contents of the tank are dissolved in 2900 ml of water
a certain weak base which we will represent by the symbol b has a basicity constant kb 37 x 10-4 at 25 c the ph of a
a village maintains a large tank with an open top containing water for emergencies the water can drain from the tank
the temperature of water decreases on the dissolution of nh4no3 from this observation we can conclude that the solution
rail guns can accelerate an object by using the magnetic force on a current carrying device a rail gun is constructed
what is the keq for a chemical reaction which has eo of 050v and a 3 electron
barium nitrate is a not very soluble nitrate calculate the ksp at 25 degrees from the following deltagsba2
the golden gate bridge in san francisco has a main span of length 128km one of the longest in the world imagine that a
a solution is prepared by adding 500ml of 0050m hcl to 150ml of 010m hno3 calculate the concentrations of all of the
1040 carbon steel is a medium carbon steel determine the applied stress at failure for a crack of length 5mm using the
the polarizing angle for light in air incident on a glass plate is 572 what is the index of refraction of the
a 900 kg fullback running east with a speed of 500 ms is tackled by a 950 kg opponent running north with a speed of 300
for a particular redox reaction no2- is oxidized to no3- and ag is reduced to ag complete and balance the equation for