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Mathematics, 28.06.2020 02:01, lilsnsbsbs
A truck covers 40 km with an average speed of 80 km/h. It then travels
another 40 km with a speed of 40 km/h. What was the time taken to
complete the entire journey?
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Answers: 2
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Mathematics, 21.06.2019 13:30, love0000
The decibel level of sound is 50 db greater on a busy street than in a quiet room where the intensity of sound is watt/m2. the level of sound in the quiet room is db, and the intensity of sound in the busy street is watt/m2. use the formula , where is the sound level in decibels, i is the intensity of sound, and is the smallest sound intensity that can be heard by the human ear (roughly equal to watts/m2).
Answers: 1
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A truck covers 40 km with an average speed of 80 km/h. It then travels
another 40 km with a speed o...
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