Determine how the mechanical advantage of a ramp changes as the ramp becomes longer

Natural forces that can alter ecosystems include seasons and climate changes. t or f

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.

To create electromagnetic induction, which of the following has to move? a. a wire b. a magnet c. a transformer d. either a or b