Trending Now. Answers. Best Answer: Locomotives weigh anywhere from 120 to 240 tons each, depending on the size. Mainline units are the heaviest, switcher units and yard engines are the lightest. Rail cars can weigh anywhere from 30 tons (empty) to 140 tons (loaded) each. Special cars designed to carry extra heavy loads can weigh well in excess of 200 tons.
Electrum is the internal temporal pushing metal alloy made from gold and silver. An Allomancer burning electrum is able to see who they may become in the future, depending on his choices. Feruchemists can use electrum to store determination, and when used as a Hemalurgic spike, electrum steals an unknown quality.
Electret (formed of elektr-from  electricity  and-et from  magnet ) is a dielectric material that has a quasi-permanent electric charge or dipole polarisation. An electret generates internal and external electric fields, and is the electrostatic equivalent of a permanent magnet. Oliver Heaviside coined this term in 1885. Materials with electret properties were, however, already studied since the early 18th century.