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in a particular redox reaction bro- is oxidized to bro3- and ag is reduced to ag complete and balance the equation for
a 1 kg mass is moving in a circle of radius 18 m on a flat frictionless table at the end of a string the speed of the
the two mediums below propagate particles differently which of the two medium would have higher acoustic velocity and
find the frequency in terahertz of visible light with a wavelength of 441 nm in vacuum thzwhat is the wavelength in
consider the titration of a 250 ml sample of 0110m hc2h3o2 with 0130m naoh determine the ph at one-half of the
during each cycle a refrigerator ejects 680 kj of energy to a high-temperature reservoir and takes in 600 kj of energy
calculate the percent ionization of benzoic acid for the following concentration a 040 m b 000040 please show work i
in europe surveyors often measure angles in grads there are 100 grads in one-quarter of a circle how many grads are
a heat pump has a coefficient of performance of 385 and operates with a power consumption of 691 103 wa how much energy
a laserpointer has a beam intensity of 55 wm2 and a beam radius of 21 mm a first grader attempts to use it to move a
why do you need to keep a mixture of nabh4 and meoh in ice bath write down equation and explain why you have to put in
a playground merry-go-round has a radius of 30 m and a rotational inertia of 600 kgmiddotm2 it is initially spinning at
a heat pump is essentially an air conditioner installed backward it extracts energy from colder air outside and
an ideal carnot freezer in a kitchen has a constant temperature of 263 k whereas the air in the kitchen has a constant
a a laser beam with wavelength 6328 aring is incident normal to the plane of a diffraction grating the grating has
which compound has the higher barrier to rotation about the central c-c bond 23-dimethylbutane or 223-trimethylbutane
a copper wire is 600 m long and has a cross-sectional area of 200 10-4 m2 this wire forms a one turn loop in the shape
the force vector a has a magnitude of 980 newtons n and points due east the force vector b has a magnitude of 111 n and
each day the human heart takes in and discharges about 7500 l of blood if the heart does 140 kilojoules kj of work in
draw both chair conformations of the following structure and label which one is more stable draw the two possible
a 220 kg child is riding a playground merry-go-round that is rotating at 400 rpm what centripetal force must she exert
trimethylamine ch33n has a kb 74x 10-5 what is the percent dissociation of a 015 m solution of this base in
a sphere of copper that has a radius of 5 cm is compressed uniformly by a force of 30 108 n calculate the change in
a satellite of mars called phobos has an orbital radius of 94 106 m and a period of 28 104 s assuming the orbit is
a square wire loop 110 cm on each side carries a clockwise current of 160 apart a find the magnitude of the magnetic