Physics, 06.07.2019 16:00 kataldaine
Sara was walking through a forest in hawaii. one thing that made an impression on her was the distinct absence of bird sounds. as she continued walking through the forest, sara wondered why she did not hear or see any birds. the scenario above is an example of how a. an observation can lead to a scientific question. b. a scientific question can lead to a prediction. c. a scientific question can lead to an observation. d. a prediction can lead to a scientific experiment.
Answers: 1
Physics, 21.06.2019 21:30
Look at the potential energy diagram for a chemical reaction. which statement correctly describes the energy changes that occur in the forward reaction?
Answers: 1
Physics, 21.06.2019 23:30
A175 g lump of molten lead at its melting point (327 c) is placed into 55.0 g of water at 20.0 c. the specific heat of lead is 130.j/kg c and the hf of lead is 20,400 j/kg. when the lead and the water have reached equilibrium, what is the temperature of the mixture?
Answers: 3
Physics, 22.06.2019 18:30
Which form of cell division creates the sperm and egg, resulting in half of the chromosomes as the other cells?
Answers: 1
Sara was walking through a forest in hawaii. one thing that made an impression on her was the distin...
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