Physics, 24.04.2020 23:31, dannisundrop
A rock group is playing in a bar. Sound emerging from the door spreads uniformly in all directions. The intensity level of the music is 66.9 dB at a distance of 3.36 m from the door. At what distance is the music just barely audible to a person with a normal threshold of hearing
Answers: 3
Physics, 22.06.2019 02:10, allytrujillo20oy0dib
How is coal extracted from mountaintop removal mines? a. dynamite is used to create underground tunnels where miners go to extract the coal. b. dynamite is used to break apart rocks and then draglines are used to remove the broken rock and reach the coal. c. coal in mountaintops is extracted by digging strips in the landscape to reach the coal. d. placer deposits in mountain river bottoms are removed by
Answers: 2
Physics, 23.06.2019 05:00, onwugbonup
Diego is trying to lift a piano to the second floor of his house. diego uses a pulley system and gives a big lift to the piano. the piano moves upward, then stops, and then it starts to fall to the ground. which list best describes the forces on the piano in the proper order? positive force → balanced force → negative force negative force → balanced force → positive force positive force → unbalanced force → negative force negative force → unbalanced force → positive force
Answers: 1
Physics, 23.06.2019 08:30, ap03baller
Meaning of a nonzero y-intercept to a graph of reaction distance versus speed
Answers: 1
A rock group is playing in a bar. Sound emerging from the door spreads uniformly in all directions....
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