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calculate the lattice energy for lifs given the following sublimation energy for lis 166kjmol hf for fg 77kjmol first
two cars traveling with the same speed move directly away from one another one car sounds a horn whose frequency is 206
show the product that forms when 3-phenylpropanal is allowed to mix with sodium hydroxide
an object is placed 555 cm from a screena where should a converging lens of focal length 80 cm be placed to form an
a 15 ml sample of 0100 m baoh2 is titrated with 012m hcl calculated the equivalency point and the ph after 5ml 10 ml 15
a 100-cm-high object is placed 380 cm to the left of a converging lens of focal length 750 cm a diverging lens of focal
how many ml of 0150 m naoh are needed to neutralize 5000 ml of a 0120 m solution of
a 5 kg mass is connected to a spring 1000 nm platform which undergoes simple harmonic motion in the vertical direction
youre carrying a 40-m-long 23kg pole to a construction site when you decide to stop for a rest you place one end of the
two astronauts of equal mass 92 kg are holding on to opposite ends of a straight rope in space the length of the rope
a hoop and a disk both of mass 2 kg and radius of 03 m roll without slipping up a straight incline with an initial
object o1 is 159 cm to the left of a converging lens with a 118-cm focal length a second lens is positioned 100 cm to
three blocks are connected on the table as shown below the coefficient of kinetic friction between the block of mass m2
a 035 mass is attached to a spring with a force constant of 26 and released from rest a distance of 39 from the
a transparent photographic slide is placed in front of a converging lens with a focal length of 233 cm an image of the
the right-side rearview mirror of mikes car says that objects in the mirror are closer than they appear mike decides to
what is the density of an aqueous solution of potassium nitrate that has a normal boiling point of 1030 degrees celsius
a circular loop of radius 50 mm in the plane of the paper carries a counterclockwise current of 15 a it is submerged in
two astronauts each having a mass m are connected by a rope of length d having negligible mass they are isolated in
a 20-mc charge is 4 cm above an unknown charge q the electric intensity at a point 1 cm above the 20-mc charge is
if the reaction between iron iii ion and thiocyanate ion yielded an equilibrium concentration of 15 m for each of these
a 34-m-tall 90-cm-diameter concrete column supports a 40times105kg load by how much is the column
a fire engine is driving directly away from a solid wall at 35 ms on a hot 300 c day while its siren emits a steady 455
sroh2 is considerably more soluble in hot than in cold water at 25 degc 101 g of this compound dissolves in 0100 l of
an outfielder throws a 0150 kg baseball at a speed of 420 ms and an initial angle of 300deg what is the kinetic energy