Answers: 2
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, 21.06.2019 23:30
Which lists the main components of darwin’s theory of evolution? a. random mutations drive evolution; the evolution of a population happens slowly; organisms have common ancestors; organisms do not change. b. natural selection drives evolution; the evolution of a population happens slowly; organisms have common ancestors; organisms change over time. c. natural selection drives evolution; the evolution of a population happens rapidly; organisms have common ancestors; organisms change over time. d. random mutations drive evolution; the evolution of a population happens rapidly; organisms have common ancestors; organisms do not change.
Answers: 1
Physics, 22.06.2019 05:00
The earth is constantly spinning on its axis, like you might spin a basketball on your finger. it is this spinning of the earth that causes
Answers: 3
How long does it take for saturn's equatorial flow, moving at 1500km/h, to encircle the planet?...
Mathematics, 05.08.2019 04:10
Mathematics, 05.08.2019 04:10
Mathematics, 05.08.2019 04:10
Mathematics, 05.08.2019 04:10
English, 05.08.2019 04:10
English, 05.08.2019 04:10
English, 05.08.2019 04:10
Social Studies, 05.08.2019 04:10
Mathematics, 05.08.2019 04:10
Mathematics, 05.08.2019 04:10
Physics, 05.08.2019 04:10