A sub-woofer is a type of speaker which plays only the very low notes in a song or movie. Which of the following frequencies would you expect to be able to hear from a sub-woofer?

indium, and thallium have three electrons i think

> b takes place in the gas phase in an isothermal tubular reactor. the feed is one mole of a per one mole of c, an inert. the entering temperature and pressure are 427°c and 10 atm, respectively. the gas constant r = 0.08206 atm · l/mol · k.

there are two significant figures.