Abrick lies perilously close to the edge of the flat roof of a building. the roof edge is 50 ft above street level, and the brick has 340.0 j of potential energy with respect to street level. someone edges the brick off the roof, and it begins to fall. what is the brick’s kinetic energy when it is 35 ft above street level?
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Chemistry, 22.06.2019 02:30
When svante arrhenius first proposed his acid-base theory, he was a doctoral candidate. his professors thought his ideas were unfounded. within a decade, the arrhenius theory of acid-base was widely accepted and praised within the scientific world. arrhenius defined acids as compounds having ionizable hydrogen and bases as compounds with ionizable a) barium. b) hydronium. c) hydroxide. d) oxygen.
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Chemistry, 22.06.2019 19:20
15. which of the following is not human-caused groundwater pollution? a. water in an aquifer dissolves elements such as arsenic and mercury from surrounding rock. b. water in an aquifer is contaminated by leachate that seeps into the ground from a landfill. c. water in an aquifer becomes polluted with chemicals used in hydraulic fracturing, or fracking. d. water in an aquifer absorbs harmful bacteria from the drainage field of a septic tank.
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Chemistry, 23.06.2019 15:30
The gas in a sealed container has an absolute pressure of 9.25 atmospheres. if the air around the container is at standard pressure, what is the gauge pressure inside the container
Answers: 1
Chemistry, 23.06.2019 18:00
Explain how compaction is important in the formation of coal.
Answers: 1
Abrick lies perilously close to the edge of the flat roof of a building. the roof edge is 50 ft abov...
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