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a 40kg mess kit sliding on a frictionless surfaceexplodes into two 20gk parts one moving at 30ms due north andthe other
a water tank filled with water to the brim has a hole in itsside 30 meters down from the top the area of the hole is008
a microwave oven operating at 25 ghz has a power output of500 wa what is the wavelength of the microwavesb what is the
what is the minimum energy in electron voltsthat is required to remove the electron from the ground state of anionized
a helicopter starting from restaccelerates straight up from the roof of a hospital the liftingforce does work in
suppose you have a solution that might contain any of the following cations ni2 hg fe3 and ca2 addition of excess hcl
a laser is used in eye surgery to weld a detached retina back intoplace the wavelength of the laser beam is 514 nm
a skateboarder shoots off a ramp with a velocity of 58 msdirected at an angle of 54deg above the horizontal the end
a 1 kw radio transmitter operates at a frequency of 880khz how many photons per second does it
how many moles of ba and cl are contained in 1070g of baclo42bull3h2o how many molecules of water hydration are in this
a proud deep-sea fisherman hangs a 650 kg fish from anideal spring having negligible mass the fish stretches thespring
if your body is emitting infrared radiation of wavekenght 94x 10-6 m what is the energy of the released
a nuclear power plant has a reactor that produces heat at the rate of 838mw this heat is used to produce 253mw of
a steel ball of mass 0840 kg is fastened to a cord that is 750 cmlong and fixed at the far end the ball is then
a pair of speakers separated by 0700m are driven by the same oscillator at a frequency of 658 hz an observer originally
a steel cable is to support an elevator whose total loaded massis not to exceed 3100 kg if the maximum acceleration of
write balanced net ionic equation oxidation half reaction and reduction half reaction of a solution of lead iinitrate
a cylinder contains 18 moles of a momatomic ideal gas at a constant pressure of 160 kpa a how much work does the gas do
sketch the 1h nmr spectra for all of the isomers of rhh2clpph33 consider only the hydride hydrogens directly bonded to
a 077-m aluminum bar is held with itslength parallel to the east-west direction and dropped from abridge just before
what are the concentrationgrams if a solid is formed of all species in soln when 2500ml of a 015m soln of calcium
a 89 omega resistor and a65 omega resistor are connected inseries with a power supplya the voltage drop across the 65
the amount of carbon- 14 in an ancientwooden bowl is found to be one-half that in a new piece ofwood how old is the
how many grams og a solid caoh2 can be dissolved in 3500ml of a 00250 m naoh soln the ksp for caoh2 is
an lc circuit oscillates at a frequency of 197 khza if the capacitance is 397 mf what is theinductance in hb if the