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when a650-v emf device is placed across two resistors in series a current of 100 a is flowing in each of the resistors
a ball is dropped from a height of 4 m and makes an elastic collision with the ground assume that no mechanical energy
you add 5 ml of 50 mm hcl to a 01 moles of buffer with a pka of 62 the initial ph of the solution is 64 what is the ph
calculate the thermal broadening for a ca ii k line at 3933 a given stellar photospheric temperatures of 30006000 and
a continuous line of charge lies along the x axis extending from x x0 to positive infinity the line carries positive
a machine gun fires 25-g bullets at the rate of 4 bullets per second the bullets leave the gun at a speed of 1000 ms
when the ph of a solution is 2 units lower than the pka of the buffer in the solution the conjugate baseweak acid a-ha
a projectile is launched with a momentum of 200 kg bull ms and 1000 j of kinetic energy what is the mass of the
a hene helium-neon laser has a beam power of 500 mw at a wavelength of 656 nm assume the beam is focused by a lens to a
a forensic scientist is using a standard biological microscope with a 15 x objective and a 5 x eyepiece to examine a
the hydrolysis of glucose-1-phosphate to glucose and pi has a standard free energy of -5 kcalmol whats the equilibrium
consider the titration of 250 ml of 00500 m hclo4 perchloric acid a strong acid with 0100 m koh a strong base a find
a ball is attached to a horizontal cord of length l whose other end is fixed a peg is located at a distance d directly
a child knocks a 12 kg vase off of a table 15 m above the groundawhat is its potential energy before it begins to
a 500 kg cart is at the top of a steep track it rolls from rest down a 7 meter hill if 2000 joules of energy are lost
a plate hits the floor and breaks into 2 pieces the first piece has a mass of 02 kg and flies off at an angle of 30
a 90 kg linebacker running downfield at 10 ms collides with a 65 kg referee who is at restawhat is their final
what is the ph at the equivalence point when a 124 gram sample of c6h5cooh ka66x10-5 mm121 are titrated with 0180m lioh
when subjected to a force of compression the length of a bone compression youngs modulus 94 x 109 nm2 tensile youngs
assuming there is no overpotential predict the products formed at the anode and cathode during the electrolysis of
a 400kg block is suspended from a spring withk560nm a500g bullet is fired straight up into the block from directly
write the mechanism showing electron flow with arrows for the acid-catalyzed hydrolysis of methyl
four wires meet at a junction in two of the wires currents i1 103 a and i2 205 a enter the junction in one of the
a 01276-g sample of monprotic acid molar mass 110x 102 was dissolved in a 250 ml of water and titrated with 0633 m
a galvanometer has a coil resistance of rgalv 897 it is to be made into an ammeter with a full-scale deflection equal