Physics, 29.02.2020 03:27, braedenmoses7
A sound source emits 20.0 W of acoustical power spread equally in all directions. The threshold of hearing is 1.0 Ă— 10-12 W/m2. C_9. What is the sound intensity 30.0 m (in W/m2 ) from the source?
Answers: 1
Physics, 21.06.2019 16:30, angelinagiraffp538zb
When a neutrally charged atom loses an electron to another atom, the result is the creation of a. two charged atoms. b. two negatively charged atoms. c. two positively charged atoms. d. two neutrally charged atoms.
Answers: 1
Physics, 22.06.2019 10:00, lorelei7668
(a) calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 10.0 g. silver has 47 electrons per atom, and its molar mass is 107.87 g/mol. (b) imagine adding electrons to the pin until the negative charge has the very large value 1.00 mc. how many electrons are added for every 109 electrons already present
Answers: 3
Physics, 22.06.2019 10:00, mathscience9301
Which fact supports the conclusion that there will be fewer farm managers in the future? a) a farmer manager’s duties vary by the type of farm. b) farm technology is replacing some administrative jobs c) farm managers often need experience but not education. d) administrative duties include budgeting and training staff.
Answers: 2
A sound source emits 20.0 W of acoustical power spread equally in all directions. The threshold of h...
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