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when 2-methylpropene is bubbled into dilute sulfuric acid at room temperature it appears to dissolve what new substance
a 108 g piece ofstyrofoam carries a net charge of -0700 microc and floats abovethe center of a large horizontal sheet
find the pressure increase in the fliuid in a syringe when anurse applies a force of 42n to the syringes circular
an electric dipole consists of charges 2e and-2e separated by 060 nm it is in an electric fieldof strength 45 x 106 nc
beams of high-speed protons can be produced in guns usingelectric fields to accelerate theprotons a what acceleration
-a student started the purification and recrystallization with a crude sample of adipic acid that weighed 20421 g and
a rock is dropped off the side of a bridge and hits the waterbelow 2s latera what was the rocks velocity when it hit
estimate the volume of water in the worlds oceans in cu km assuming a mean depth of water of 4 km how deep would the
to what volume should you dilute 595ml of a 495m ki solution so that 260ml of the diluted solution contains 345g of
a 12v battery is conected to an electricstarter motor the current through the motor is 223ahow much energy does the
you made a ph 10 buffer by combining 142 ml of 28 nh4oh with 175 g nh4cl what would have been the ph of the buffer if
an alpha particle helium nucleus charge 2e starts fromrest and travels a distance of 30 cmunder the influence of a
naoh solution- you will prepare naoh solution by diluting 3ml of 50 by mass naoh p153 gml to 500 ml note 50 by mass
consider the following reaction a reaction mixture initially containing 0490 and 0490 was found to contain 11times10-3
a 0066 mol sample of formaldehyde vapor ch2o was placed in a heated 500 ml vessel and some of it decomposed the
the coefficient of static friction between the tires of amotorcycle and the road is 056 at a speed of 19 ms what is
the click beetle accelerates at 400 g over a distance of 060 cm as it bends its thorax to clicka assuming the beetle
a spacecraft that is initially at rest turns its engine at t0 ifits mass is m3000kg and the force from the engine is
a 150g copper bowl contains 220 g of water both at 200degrees c a very hot 300g copper cylinder is dropped intothe
a turntable is switched from 471 rads 45rpm to 349 rads3313 and the platter rotates through an angle of 115 rad
an amusement ride consists of a car moving in a vertical circleon the end of a rigid boom the radius of the circle is
two point charges 370 microcand -610 microc are separated by 160 m what is the electric potential midway between
an object initially at rest experiences an acceleration of17ms2 for 70s and then travels at that constantvelocity for
two 75 kg campers are in the middle of a creek in a 45 kg boat without a paddle all they have on board the boat is a
a thin cylindrical shell of infinite length and radius 260-cm hasa uniform surface charge density of 689-ncm2 what is