Speed of sound material speed of sound in m/s air 331 helium 972 tap water 1493 sea water 1533 aluminum 5100 based on the table, what might be a reasonable conclusion? a) sound travels faster through more dense materials. b) the speed of sound depends only on the state of matter. c) sound travels slower through metals than any other materials. d) sound travels faster through aluminum than any other material that exists.
Answers: 2
Geography, 22.06.2019 07:10
According to the united nations refugee agency, more than 2/3 of the world's refugees come from just five countries. which country is not on that list? a) turkey b) myanmar c) afghanistan d) south sudan
Answers: 3
Geography, 22.06.2019 21:00
Impressions of tropical swamp plants were observed on rocks in polar regions. the impressions were dark black imprints, which means the fossils are examples of ( 1 ) the fossils tell us that polar regions ( 2 ) ( 1 ) a. carbonization b. mineralization c. trace fossils ( 2 ) a. had tropical plants that can grow in ice b. might have had a diffierent climate in the past c. will have abundent vegitation
Answers: 1
Geography, 23.06.2019 08:10
Lomexico, central america, and the caribbean: mastery testselect the correct answer.which of the following was the leading cause of death among native americans after the arrival of europeans? a.conquistadorsb.diseasec.starvationd. warreset
Answers: 1
Geography, 23.06.2019 11:30
Mexico city is an example of how humans alter their environment because it was a. one of the world’s largest cities b. built on drained and filled lake beds c. built after conquest by the spanish d. once the capital of the aztec empire
Answers: 2
Speed of sound material speed of sound in m/s air 331 helium 972 tap water 1493 sea water 1533 alumi...
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