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a projectile is launched with 200 kg ms of momentum and 1000 j ofkinetic energy what is the mass of the
a meter stick of mass 025 kg is mounted on a perpendicular axis at the 20 cm mark a force of 3 n is applied at the 80cm
a 150-n sled is pulled up a 28 degree slope at a constant speed bya force of 100n what is the coefficient of kinetic
explain the various steps in a free radical mechanism using the reaction of methane with bromine g to form bromomethane
a rifle is aimed horizontally toward the center of a target 100 maway if the bullet strikes 10 cm below the center what
using proper electron movement show the mechanism for the addition reaction of ethene ch2ch2 and hcl to form
what is the final molar concentration of every species remaining in aqueous solution of the following reaction2 hcl
a cylindrical fishing reel has a moment of inertia of i 73 10-4 kgmiddotm2 and a radius of40 cm a friction clutch in
we have a thin round plate of radius r we remove a part of itwhich has also round shape with diameter r find the center
a solenoid of length 33 cm and diameter090 cm is wound with 180 turns per cm the current is decreasing at a rateof 350
a cylinder of mass 69 kg and radius020 m rolls along a level floor itscenter of mass has a speed of 08 msa find the
a lead block is suspended from the underside of a 02 kg block ofwood of density of 662 kgm3 if the upper surface ofthe
a 190 n object floats with three-fourths of its volume beneath the surface of the water what is the buoyant force on
a man bring to work a 57kg box of decorations being lazy and tired when he reaches the ramp outsideof his office he
a playground merry-go-round of radius 200 m has a moment ofinertia i 300kgmiddotm2 and is rotating about a
if a truck generates 15 hp when travelingat a steady 92 kmh what must be theaverage force exerted on the truck due to
a 195-kg boy slides down a playgroundslide that drops through a height of 232m if the boy starts at rest at the top of
two 40 cm times 40 cm electrodes spaced 20 mm apart form aparallel-plate capacitor inside the capacitor the electric
a spacecraft moving away from earth emits a 4496 hz signal ascientist on earth measures the signal to be 4494 hz what
a what is the ph of a buffer prepared by adding 0506 mol of the weak acid ha to 0305 mol of naa in 200 l of solution
a compound with the formule c9h12o has a bicylic structure but no additional rings how many moles of hydrogen h2 should
a large storage tank open to the atmosphere at the top and filledwith water develops a small hole in its side at a
a saturated solution of caco3 was made under an inert atmosphere containing just n2 this solution was brought to the
a beaker with 200 ml of an acetic acid buffer with a ph of 500 is sitting on a benchtop the total molarity of acid and
a force of 315n is applied horizontally to a wooden crate in order to displace it 35m across a level floor at a