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a guitar string has a length of 8 m if the wave speed ofthe spring id 560ms what is the frequency of the sixth
calculate the volumes of acetic acid ch3cooh and of the acetate ch3coo- solution that would be needed to prepare a
water is unique because it is less dense as a solid than as a liquid how can you account for this unusual attributea
as measured in earths frame of reference two planets are 424000km apart a spaceship flies from one planet to the other
for the unbalanced redox reaction identify the substance oxidized the substance reduced the oxidizing agent and the
a sample of an unknown material appears to weigh 300n in air and 200n when immersed in alcohol of specific gravity 0700
the wave function for a traveling wave on a taut string is in siunits the following equation yx t 0382 msin14pit -
a line in the balmer series of emission lines of excited h atoms has a wavelength of 4102 nm what color is the light
a car sits in an entranceramp to a freeway waiting for a break in the traffic the driveraccelerates with constant
calculate the wavelength and frequency of light emitted when an electron changes from n 4 to n 3 in the h atom in
you rev your cars engine to 2900 rpm revminpart a what is the period of the engine in secondspart b what is the
a spaceship ferrying workers to moon base i takes a straight-linepath from the earth to the moon a distance of about
write a complete set of quantum numbers n l and ml that quantum theories allows for each of the following orbital a 2p
a sled of mass 500 kg is pulled along flat snow-coveredground the static firiction coefficient is 030 and the
in an equation for neutralization reaction that forms an aqueous solution of calcuim nitrate the reactantsmight
in a certain compound microscope the object is 90 mm from the objective the lenses are 265 mm apart and the
a harmonic wave travels in a wire with amplitude 254 mmwavelength 134 m and frequency 487 hz what is the speed with
a misture of 25 mol n2 an d 60 mol h2 are placed in a 10 l evacuated flask at 300 degrees celcius and it is then
a flask contains a mixture of compounds a and b both compounds decompose by first-order kinetics the half-lives are 550
if fluid inflow rate to a reactor is 6 litersmin and the desired conversion is 85 for a first order reaction in the
a 75 g arrow is fired from a bow whosestring exerts an average force of 95 n on the arrow over a distanceof 76 cm what
iron atoms have been detected in the suns outer atmosphere somewith many of their electrons stripped away what is the
on a frictionless horizontal surface a 150 kg mass traveling at350 ms collides with and sticks to a 300 kg mass that
05 kg mass is exhibitingcounterclockwise ucm on level fric free table top at the end ofthe string whihc is held in
imagine a solar electric power plant that operates by using a gigantic mirror to concentrate light on the boiler for a