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calculate the magnitude of the linear momen- tum for each of the following cases a a proton with mass 167times1027 kg
a 70kg hiker climbs to the second base camp on nanga parbat in pakistan at an altitude of 3900m starting from the first
a glass lens with radii r130cm and r230cm has an index of 160 and a thickness of 30cm it is placed in the end of a tank
if a reaction has ea400 kjmol and is run at room temperature 298 k at what temperature will the rate be twice the rate
a 0156 toy is undergoing shm on the end of a horizontal spring with force constant 306 when the object is 150times102
which of the following processes requires the least energy per molea helium forming hydrogenb ice at 0degc forming
four passengers with a combined mass of 300 compress the springs of a car with worn-out shock absorbers by 440 when
consider an equilibrium mixture of four chemicals a b c and d reacting in a closed flask according to the equationa b
a certain pipe has resonant frequencies of 350 hz 490 hz and 630 hz with no other resonant frequencies between these
a force of 210n is applied to a 500 kg box the force is directed 20 degree above the horizontal the coefficient of
dolphins emit ultrasonic waves with a frequency as high as 25 105 hz what is the wavelength of such a wave in seawater
if an acid base reaction produces a solution with a ph of 7 at its equivalence point why does an indicator solution
a harpsichord string of length 150 m and linear mass density 250 mgm vibrates at a fundamental frequency of 4500 hza
during the initial charge of a capacitor up to its max charge vo the initial energy stored in the capacitor is 12cvo2
at the endpoint of a titration of a weak acid ha nicotinic acid with naoh 100 ml each 0100 m the ph is 878 what is the
light visible to humans consists of electromagnetic waves with wavelengths in air in the range 400-700 nm 40 10-7 m to
a buffer is made by mixing 0241 moles of acid with 0217 moles of its conjugate base 001 moles of naoh is added to the
a boy is riding a bicycle which has tires with a diameter of 62cm if he travels a distance o f 0320km in a time of 100
a calculate the and the concentrations of all species present h3of- cl-and oh- in a solution that contains of hf 019 m
a duck is floating on a lake with 28 of its volume beneath the water what is the average density of the
a 20 kg child is riding a 54 kg bike with a velocity of 54 ms to the northwest awhat is the total momentum of the child
what is the ph at the equivalence point when when 250ml of 0100m hypochlorous acid hclo is titrated with 0200m koh ka
a vibrating string has a fundamental frequency of 225 hz the tension is then increased by a factor of 25 what is the
hydrogen has an electronegativity value between boron and carbon and identical to phosphorous with this in mind rank
a long thin rod lies along the x-axis one end is at x200 m and the other at x300 m its linear mass density 0400 x20600