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Physics, 22.06.2019 01:30, markmeinberg
Ajet plane has a sound level of 120 db at a distance of 60 m. what is the q23. sound level at a distance of 6.0 km? (60)2 (6000)? om solution 80db db, hint: 16x assume ultrasound waves travel through the body of an animal at 1540 q24. m/s. if a 30,000 hz signal were reflected off a portion of a heart which was moving toward the source at 3 m/s, what frequency signal would return to the stationary source? solution 30.117hz
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Physics, 22.06.2019 10:10, Kitty10101
Apair of 10μf capacitors in a high-power laser are charged to 1.7 kv. a. what charge is stored in each capacitor? b. how much energy is stored in each capacitor?
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Physics, 23.06.2019 07:00, coollid876
Acircuit contain a 5-ohm, a3-ohm, and an 8-ohm resistor in series. what is the total resistance of the circuit
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Ca(s) + PbCl2(aq) → CaCl2(uq) + Pb(s)...
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