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8. Which of the following statements is an accurate description of vibrations?
Neither ultrasonic nor infrasonic vibrations can be heard by humans is an accurate description of vibrations.
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Asked 10/15/2018 2:23:43 PM
Updated 295 days ago|1/1/2021 5:55:20 PM
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Neither ultrasonic nor infrasonic vibrations can be heard by humans is an accurate description of vibrations.
Added 295 days ago|1/1/2021 5:55:20 PM
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A block has a volume of 0.09 m3 and a density of 4,000 kg/m3. What's the force of gravity acting on the block in water? A. 2,646 N B. 882 N C. 3,528 N D. 3,038 N
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Updated 24 days ago|9/29/2021 12:24:59 PM
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A block has a volume of 0.09 m3 and a density of 4,000 kg/m3. The force of gravity acting on the block in water is 3,528 N.
density = mass / volume ,
mass= 4000*0.09 =360 kg ,
force = mass *acc , force = 360 *9.8 = 3,528 N
Added 24 days ago|9/29/2021 12:24:59 PM
This answer has been confirmed as correct and helpful.
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