State law of conservation​
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Physics, 22.06.2019 07:30
30 points - when can a theory be modified if a new type of technology allows for new observations that raise new questions? a. immediately, while the questions about the theory are being asked b. after new hypotheses related to the theory are tested in experiments c. only after the new observations disprove all parts of the theory d. while scientists begin to think about how the theory could improve
Answers: 1
Physics, 22.06.2019 07:30
Identify the theory that can be used to explain each phenomenon. answers diffraction: wave theory interference: wave theory reflection: both particle and wave theories refraction: both particle and wave theories
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Physics, 22.06.2019 15:30
Two pans of a balance are 24.1 cm apart. the fulcrum of the balance has been shifted 1.33 cm away from the center by a dishonest shopkeeper. by what percentage is the true weight of the goods being marked up by the shopkeeper? assume the balance has negligible mass. answer in units of %.
Answers: 1
Physics, 23.06.2019 02:00
Which of the following are molecules? a. al b. ag c. mgcl2 d. nacl e. c3h8
Answers: 1
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