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a large tub is filled to a depth of 500 cm with fresh water then oil of density 7500 kgm3 is poured onto the water the
a car with a total mass of 193 103 kg has wheels of radius 350 cm and moment of inertia 0715 kg middot m2a find the
a 0207 g sample of an alloy containing lead is dissolved in nitric acid to produce an aqueous solution of leadii ions
write the net redox reaction that occurs in the galvanic cell 1 pt zns zn2aq 100 m pb2aq 100 m
a transverse wave is traveling through a canal if the distance between two successive crests is 317 m and four crests
what is the cell diagram for the spontaneous cell involving the fe3 fe2 0771v half cell and the zn2 zn -0763 v half
a assume that air pressure is 100 atm and the air temperature is 193o c if the abolute zero apparatus is open to the
calculate the mass of i2 produced at the anode if a current of 285 a is passed through a solution of ki for 56
the coefficient of performance of a refrigerator is 470 the compressor uses 200j of energy per cyclepart a how much
a carnot refrigerator operating between -100 cand 100 c extracts heat from the cold reservoir at the rate 100js what
identify r and r in equation 1 when the ester aspirin is made from salicylic acid and acetic acid calculate the
a 2kg package is released on a 531 degree incline 4m from a long spring with force constant 120 nm that is attached to
i desperately need help with this last question i have if somebody could please solve it and show the steps ill be
predict qualitatively which of the following aqueous solutions a b c or d each containing 20 moles of the given
a block of unknown mass is attached to a spring of spring constant 61 nm and undergoes simple harmonic motion with an
a uniform 245- kg spinning disk with a radius of 0323 m is brought to rest by a brake-pad pressed against the side
zinc metal reacts with excess hydrochloric acid to produce hydrogen gas according to the following equation zns 2hclaq
a system does 430 104 j of work and 700 104 j of heat flows into the system during the process find the change in the
a 50- kg block oscillates with an amplitude of 0090 m on a light spring of constant k 280 nmwhat is the maximum value
predict the sign of delta ssystem for the following processes a molten fe solidifies b licls is formed formed from lis
a gas molecule having a speed of 322 ms collides elastically with another molecule of the same mass which is initially
a bicycle is turned upside down while its owner repairs a flat tire a friend spins the other wheel of radius 04 m and
explain in terms of their structures why each of the following pairs of substances have very different chemical and
a person is trying to practice with their yo-yo they can throw the yo-yo with initial angular velocity winitial 500
a girl jumps on bike and exerts torque of 250 n-m perpendicular to the pedal moment of inertia of bike wheel is i