A0.15 kg baseball moving at a velocity of -40 m/s collides with a 0.8 kg bat moving at a velocity of +30 m/s. if the velocity of the ball after the hit is +50 m/s, what is the final velocity of the bat? a. vf = +0.35 m/s b. vf = +13.1 m/s c. vf = +28.1 m/s d. vf = +32.3 m/s

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.

What is the fate of the electrons that interact with a specimen in an electron microscope?

We have a colorless transparent liquid. it looks like water. we seperated it into a solid and a liquid by evaporration and condention was this a chemichal or a physical seperation a. chemical seperation b. physical seperation