Physics, 06.03.2020 18:59 PlaneGamer5678
Rocks containing 450-million-year-old Ordovician fossils contain jawless fish. Younger Devonian rocks that are only 400-million-years-old contain fossils of jawless fish and fish with jaws. What idea does this evidence support?
Answers: 3
Physics, 22.06.2019 06:30
From 0 to 5 seconds john pushed a box 5 meters. from 5 to 10 seconds, paul pushed the same box another 5 meters. who did more work? a. john b. paul c. john and paul did the same amount of work.
Answers: 1
Physics, 22.06.2019 09:00
In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final
Answers: 1
Physics, 22.06.2019 11:10
Avolcano erupts next to a grassland area in a valley. a. describe three ways in which material released by the volcano could impact the grassland area. b. describe three ways in which the grassland ecosystem could recover after a volcanic eruption.
Answers: 3
Physics, 22.06.2019 15:30
What is the increase in density of a medium due to wave travel?
Answers: 2
Rocks containing 450-million-year-old Ordovician fossils contain jawless fish. Younger Devonian rock...
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