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cahco32s hbraq for the equation given above enter the total ionic equation and net ionic
the spring shown is compressed 50 cm and used to launch a 100-kg physics student the track is frictionless until it
determine the activation energy in kjmol for a first order reaction if its specific rate constant 300e-05 s-1 at 350 k
a photon has momentum of magnitude 815times1028kgms 1 what is the energy of this photon give your answer in joules2
block a m 120 kg originally at rest is pushed with a net horizontal force of 786 n for 534 m as it slides across a
b2 reacts with ab to form ab2 according the the balanced equation b2 2ab --gt 2ab2 if 15 moles of b2 are reacted with
in attempting to pass the puck to a teammate a hockey player gives it an initial speed of 30 ms but because of the
why is a reaction that is performed in ethanol considered greener than a reaction that uses dichloromethane as a
suppose that a high-energy particle accelerator accelerates an electron to such great speed that its relativistic mass
draw the most stable contributing structure for the cyclohexadienyl anion formed by the reaction of methoxide ion with
a converging lens is located 100 cm to the left of a diverging lens the focal length of the converging lens is 200 cm
a 200 nc charge is placed on the x-axis at x -300cm another 200nc charge is placed on the x-axis at x300cm and a third
give the name or chemical formula and draw all possible structures 1 bisenco3-u-imido-u-hydroxobisenco3 ion 2
a copper cathode with an initial mass of 1077 g is placed in a solution of cuso4 after current has passed through the
the specifications for a ceiling fan you have just bought indicate that the total moment of inertia of its blades is
graphically determine the resultant of the following three vector displacements 1 24 m 36 north of east 2 18 m 37 east
a monochromatic beam of light of wavelength 720 nm is incident normally on a diffraction grating with 4000 linescm what
the molecular mass of helium is 4gmol the boltzmanns constant is 138066 10-23 jk the universal gas constant is 831451
15 mol of an ideal gas expands isothermally at 373 k to 125 its inital volume find the heat flow into the system the
light strikes a sodium surface causing photoelectric emission the stopping potential for the ejected electrons is 32 v
the cable of the 1900 kg elevator cab shown the figure snaps when the cab is at rest at the first floor where the cab
a 16kg box moves back and forth on a horizontal frictionless surface between two different springs as shown in the
carbon-14 has a half-life of 5730 years how long will it take for a sample to decay to only 17 of its original
a raft made of wood has a density of 600 kgm3 its surface area is 59 m2 and its volume is 06 m3 when floating in
determine the time in hours required to recharge a ni-cd battery by converting 243 g cdoh2 back to cd using a charger