For cao, the ionic radii for ca2+and o2–ions are 0.100 and 0.140 nm, respectively. if anexternally applied electric field produces a 5%expansion of the lattice, compute the dipole momentfor each ca2+–o2–pair. assume that this material is completely unpolarized in the absence of anelectric field.

Should be used when you want to make abstract ideas more concrete, and can be both real and hypothetical. be sure they are credible and relevant to your topic. a. examples b. narrations c. testimonies d. statistics

Arrange the sentences below to form a logical paragraph.an experienced rock climber knows that it takes a combination of knowledge and preparation to perform a successful climb.a successful climb begins with a proper foothold, carefully placing each foot on a ledge or crack then reaching for a solid hold, and finally pushing off.in addition to a proper foothold, a climber must be careful to check the integrity of the rock before stepping because it has to be solid clear through.a veteran climber judges the integrity of the rock and chooses not to climb on conglomerates, packed clay with lots of little rocks.but, such knowledge of rock is not the only preparation a skilled climber needs; equally important is the correct equipment.with these tools, knowledge of rock composition and equipment safety, a climber may experience many safe and enjoyable climbs.

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