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consider an organ pipe that is closed at one end and open at theother this pipe has resonant frequencies of 420 hz and
three pure compounds are formed when 100 g samples of element x combine with respectively 0472 g 0315g and 0944 g of
a how can a rocket change direction when it is far out inspace and is essentially in a vacumb a bungee jumper
an image of the moon is focused onto a screen using a converginglens of focal length f 343 cm the diameter of themoon
a 611g sample of a cu-zn alloy reacts with hcl acid to produce hydrogen gas if the hydrogen gas has a volume of 126l at
a woman stands between a vertical mirror 080 m tall and a distant tree whose height is h she is 285 m from the mirror
a bullet of mass 105 g is fired into aninitially stationary block and comes to rest in the block theblock of mass 080
emma is analyzing a sample which contains some zinc in it the sample is 198 g she reacts it with an excess of
a movie camera with a single lens of focallength 75 mm takes a picture ofa person standing 34 m away if the person is
a hand exerts a constant horizontal force on a block that isfree to slide on a frictionless surface the block start
determine the wavelength in nm of the photon required to ionize one atom of lithium ie1 520 kjmol with what region of
during basketball parctice shane made a jump shot releasing a060-kg basketball from his hands at a height of 20-m above
a 50-kg satellite circles the earth in an orbit with a period of120 min what minimum energy is required to change the
a solution is made by mixing 250 ml of 20 m sodium sulfate with 500 ml of 050 m sodium sulfate assuming that
a certain object has a mass in air of 0422 kg and a mass whensubmerged in benzene dbenzene 090 x 103 kgm3 of 0367 kg
a three-legged wooden bar stool made out of solid douglas firhas legs that are 25 cm in diameter when a 70 kg man sits
the decomposition xy is second order in xy and has a rate of 702 e-3 m-1 s-1 at a certain temperaturea what is the
a wire has a current density of 170 amm2 if thedrift velocity is 40 x 10-8 ms how many free electrons does the wire
abullet of mass m 0010 kg andspeed v passescompletely through a pendulum bob of mass m 12 kg thebullet emerges with a
two parallel plates having charges of equal magnitude but oppositesign are separated by 12cm each plate has a charge
when 204 grams of the strong electrolyte sodium phosphate are dissolved in 143 grams of watera what is the molality of
a uniform solid sphere of radius r 050 m and a mass 15 kgrotates about the z-axis through its center find its angular
in the park a mom pushes tangentially on a hand-drivenmerry-go-round and is able to accelerate it from rest to
imagine that you have a 650 l gas tank and a 400 l gas tank you need to fill one tank with oxygen and the other with