Physics, 09.10.2021 19:10 mcdonaldmacy01
3. A horizontal plate is vibrating vertically with SHM at a frequency of 20 Hz. What is the amplitude of vibration so that the fine sand on the plate always remain in contact with it?
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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
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Which component of the earth’s atmosphere is decreased due to photosynthesis?
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3. A horizontal plate is vibrating vertically with SHM at a frequency of 20 Hz. What is the amplitud...
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