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water has a mass per mole of 180 gmol and each water moleculeh2o has 10 electronsa how many electrons arethere in 3
a 009 kg arrow is pulled back in a bow after being held still it is let go moving 25ms after the 047 meters in which
a 016kg baseball is hit into the air when its 668 meters above the ground traveling 172 ms at a 55 degree angle what is
a power boat heads due northwest at 13ms relative to the water across a river that flows due north at 5ms what is the
there are four charges each with a magnitude of 18 muctwo are positive and two are negative the charges are fixedat
two geological field teams are working in a remote area a globalpositioning system gps tracker at their base camp shos
a uniformly charged plastic disk has a radius of 0440 m at what distance from the center along the central
there are four charges each with a magnitude of 20 microc two are positive and two arenegative the charges are fixed to
a police radar has an effective range of 13 km while a motorists radar detector has a rangeof 18 km the motorist is
a golfer rides in a golf cart at an average speed of 363 ms for 323 s she then gets out of the cart and starts walking
a current of 15 a flows through an electric heater operating on 120 vnbsp what is the heaters resistance compute the
a spacecraft is traveling with a velocity of v0x5480ms along thex direction two engines are turned on for a time of
an automobile starts from rest and accelerates to a final velocityin two stages along a straight road each stage
an important discovery by jj thomson gives support to thetheory of simple electrostatic phenomena what is the discovery
when you take multiple measurements of any variable which erroris reduced random or systematic explainwhen you select
a 3kg mass is positioned at 0 8 and a 1 kg mass ispositioned at 12 0 what are the coordinates of a 4 kg mass thatwill
a 150 kg iron horseshoe initially at 640degc is dropped into a bucket containing260 kg of water at 250degc what is the
a 522-kg object is attached to the bottom of a vertical spring and set vibrating the maximum speed of the object is
one of the harmonic frequencies of tube a withtwo open ends is 845 hz the next-highest harmonic frequency is 910hz a
a stationary motion detector sends sound waves of frequency0135 mhz toward a truck approaching at a speed of 492 ms
the magnitudes of the four displacement vectors are a160 mb110 mc120 m and d260 m determine the magitude and
many star are observed to have rotation periods that lengthenslightly with time a phenomenon called spin down the rate
a volume of 72 m3 of glycerol eta 0934 pa s is pumped through a 15 m length of pipe in 55minutes the pressure at the
a uniform solid metal disk of mass 650kg and diameter 240 cmhangs in a horizontal plane supported at its center by a
two masses m1 and m2 are connected by an ideal spring and placedon a horizontal frictionless surface as shown they are