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a 570-kg ball is dropped from a height of 120m above one end of a uniform bar that pivots at its center the bar has
a small birds wings can undergo a maximum displacement amplitude of 51 cm distance from the tip of the wing to the
a solid wood door 100 m wide and 200 m high is hinged along one side and has a total mass of 440kg initially open and
what salt would result is sulfuric acid was neutralized with lithium hydroxide write balanced equation for this
michelle is enjoying a picnic across the valley from a cliff she is playing music on her radio assume it to be an
a hollow spherical shell with mass 190kg rolls without slipping down a slope angled at 400 degree part a find the
how many ml of concentrated hcl at 25c is 3646 gmol should be diluted to prepare 250l of a solution that has a ph of
a pendulum of length 130 cm swings with an amplitude of 16 cm its mechanical energy is 50 mj what is the mechanical
in terms of scientific methodology were the hypotheses advanced by the ancient greeks about the origin of life as
a particular compound has a heat of vaporization of 28600 jmol at 281 k it has a vapor pressure of 121 mmhg what is its
at 33degc what is the osmotic pressure of a 06 by weight nacl in water the density is 10 gml at
the prong of a tuning fork moves back and forth when it is set into vibration the distance the prong moves between its
a 3 mh inductor and a 4 capacitor are in an lc circuit the capacitor is charged to 5 and then the switch is closed a
the upper surface of a cube of gelatin 70 cm on a side is displaced 084 cm by a tangential force if the shear modulus
a horizontal rectangular surface has dimensions 290cm by 340cm and is in a uniform magnetic field that is directed at
calculate the molecular weight of a small protein if a 040-g sample dissolved in 101ml of water has an osmotic pressure
a snowboarder of mass 86 kg travels down the slope of height 150 m shown in the figure below if she starts from rest at
a bottle is labeled constant-boiling hydrochloric acid 210 percent hcl by mass density 11 gml calculate the molarity of
a circular loop of wire of radius 18 cm moves at a speed of 66 ms in the direction of a 013 t uniform magnetic field
two point sources of sound waves are 60 cm apart they produced sinusoidal sound waves in phase and with equal amplitude
in a region where there is a vertical magnetic field of 192 10-2 t a ring of radius 109 cm is flipped in the air as one
if the following elements cavmnnizn were listed from smallest 1st to largest 5th ionization energy where would calcium
a nozzle of inner radius 105 mm is connected to a hose of inner radius 796 mm the nozzle shoots out water moving at 255
1 write all of the resonance structures for m-bromonitrobenzene 2 write all of the resonance structures for
a room has two opposing walls which are tiled the remainingwalls floor and ceiling are lined with sound-absorbent