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solid lithium metal and diatomic fluorine gas react spontaneously give the balanced chemical equation including phases
a 110 kg ice hockey player skates at 30 ms toward a railingat the edge of the ice and then stops himself by grasping
explain why light intensity is dependent on the distance the detector is from the light source describe the
silver has an atomic radius of 0144 nm an atomic weight of 10787 gmol and a density of 1049 gcm3 determine whether it
tungsten has a bcc structure an atomic radius of 0137 nm and an atomic weight of 18384 gmol compute its theoretical
titration of 08443 g of khp required 42145 g of naoh solution to reach the endpoint detected by phenolphtalein
the angularmomentum of a flywheel having a rotational inertia of 0100 kgm2 aboutits central axis decreases from 340to
the kjeldahl was used to analyze 322 ul of a solution containing 542 mg protein ml the liberated nh3 was collected in
draw 4 confirmations of 12 dibromoethane as newman projections in order of increasing
a solid copper ball with a diameter of 310 m at sea level is placed at the bottom of theocean at a depth of 100 km if
one way to attack a satellite in earth orbit is tolaunch a swarm of pellets in the same orbit as the satellite but
a 20 kg satellite has a circular orbit with a period of24 h and a radius of 80 times 106m around a planet of unknown
a satellite is placed in a circular orbit aboutearth with a radius equal to one-half the radius of themoons orbit what
a 30 kg particle with velocityv 50 ms i - 60 ms j is at x 30 m y 80 m it is pulled by a 70 n force in the negative x
a sanding disk withrotational inertia 17 10-3 kgm2 isattached to an electric drill whose motor delivers a torque of8 nm
an automobiletraveling at 800 kmh has tires of750 cm diametera what is the angular speed of the tires about
two particles p and q are initially at rest 10 m apart p hasa mass of 010 kg and q has a mass of 030 kg p and qattract
a tennis player receives a shot with the ball 00600 kgtraveling horizontally at 600 ms andreturns the shot with the
the mass of a hydrogen atom is 1673 x 10-24 g how many hydrogen atoms are present in a 100g sample of hydrogena
naturally occurring silicon exists as three isotopes 9223 is si-28 with a mass of 27977 amu 467 is si- 29 with a mass
what mass of should be added to 630 of the paraffin in formulating the mixture if the vapor pressure of ethanol at 35
half of a slab is made of aluminum density 270 gcm3 andits length is 110cm its width - 130 cm and its height -
the average mass of an atom of sulfur is 533 x 10-23 g how many sulfur atoms are present in a 1000g sample of
three thin rods each of length l are arranged in invertedu the two rods on the arms of the u each have mass m thethird
what is the molarity of a solution that was prepared by adding 100ml of 0225m kbr solution to 500ml of