An electric buzzer is activated, then sealed inside a glass chamber. when all of the air is pumped out of the chamber, how is the sound from the buzzer affected?

The us government wants to allocate billions of dollars in the next 10 years to assure our future energy security. the funds will be spread among a variety of possible energy resources. where do you think the government should put the greatest support: solar energy, wind energy, clean coal, oil exploration, gas exploration, or a combination of sources? are there other efforts that should be explored? support your position with cited information for both questions.

The radius of an atom is closest in size to a

Wind and moving water provide energy. question 1 options: chemical mechanical thermal none of the above