Physics, 28.11.2021 14:00 slayalways
Vì sao khẳng định định nghĩa vật chất của lê nin đã khắc phục triệt để quan điểm duy tâm về xã hội
Answers: 1
Physics, 21.06.2019 14:20
Physics make-up packetname_cle14. an observer hears a sound with a frequency of 400 hz. if the speed of sound is 340 m/s,what is the wavelength of the sound? a. 0.85 mb. 1.2 mc. 2.75 m13.6 m15. as sound travels from steel into air, its speed decreases. if the frequency of the wavedoesn't change, what happens to its wavelength? a. it increases(b) it decreasesc. it remains the samed. there is not enough information given
Answers: 1
Physics, 22.06.2019 10:00
During which interval are the persons represented by the graph not moving? a) 0 to 0.5 hrs b) 1.5 to 2 hrs c) 2 to 2.5 hrs d) 4.5 to 5 hrs
Answers: 1
Vì sao khẳng định định nghĩa vật chất của lê nin đã khắc phục triệt để quan điểm duy tâm về xã hội...
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