Need answer asap ! #23-24 deal with objects that fall from rest due to gravity. vi=0 and a=9.8 m/s/s 23. a piece of pipe drops off of a building and has been falling for 7 seconds. what is its final velocity (in m/s)? 24. if a ball falls from rest from the top of a tall building and reaches a velocity of 49 m/s, how long will it take (in s) before the ball reaches the ground?

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.

According to social exchange theory, altruistic behaviors benefit the individual who performs them. t/f

Apiece of metal 75g at 110°c is dropped in a container with 500g at 20°c. the h2o if temperature is 24°c find specific heat capacity of metal