17. An object moves with no friction or air resistance. Initially, its KE = 10 J, and its gravitational PE= 20 J. What is the kinetic energy when its potential energy has decreased to 15 J? *

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.

Describe different biomes. what are some adaptations that organisms (plants or animals) must have to live in each biome?

Which of the following elements is in the same period as phosphorus? a. carbon c. nitrogen b. magnesium d. oxygen select the best answer from the choices provided a b c d