In metals, the properties of malleability and ductility are explained by the fact that metallic atoms

a. roll past metallic bonds and form new bonds.

b. roll over without breaking their bonds.

c. conduct electricity by constantly moving electrons.

d. bounce light off of their sea of electrons.

Amanometer is used to measure the air pressure in a tank. the fluid used has a specific gravity of 1.25, and the differential height between the two arms of the manometer is 34 in. if the local atmospheric pressure is 12.7 psia, determine the absolute pressure in the tank for the cases of the

Laboratory experiments, observational field studies, and model-building are all examples of different forms of scientific investigations.  in what way do laboratory experiments primarily differ from other forms of scientific investigations?   a.  a laboratory experiment is the only accepted form of investigation within the scientific community.  b.  studies about how things behave in nature or studies involving very large objects are best answered through laboratory experiments.  c.  laboratory experiments involve the identification and control of variables.  d.  data can only be generated through laboratory experiments, not other forms of investigation.

In positive numbers less than 1, the zeros between the decimal point and non zero are significant