Which type of wall would make the best soundproofing for room?
А. 1.0 centimeter thick glass
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Physics, 13.10.2020 14:01 breemills9953
Which type of wall would make the best soundproofing for room?
А. 1.0 centimeter thick glass
B. two layers of 0.5 centimeter thick glass with 0.5 centimeters of air between them
C. Two layers of 0.5 centimeter thick glass with 0.3 centimeters of vacuum between them
D. 1.0 centimeter thick steel
Answers: 3
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Standing side by side ,you and a friend step off a bridge at different times and fall for 1.6s to the water below.your friend goes first,and you follow after he has dropped a distance of 2.0m.when your friend hits the water,is the seperation between the two of you 2.0m or more than 2.0m? verify your answer with a calculation.
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Physics, 22.06.2019 11:00
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Physics, 22.06.2019 16:40
Which are true about beta reactions? there will be more than one answer. a. it has no change b. it doesn't change the mass of the number c. it has a mass of 0.0005 atoms d. it causes transmutation.
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