Answers: 2
Physics, 21.06.2019 14:20, dondre54
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 05:20, lea5261
Which statement is true? a. kepler's laws apply only to the motion of earth. b. kepler's laws can be used to predict eclipses. c. kepler's laws are true for a central force that is directly proportional to distance. d. kepler's laws can be deduced from newton's laws of motion and gravity.
Answers: 2
Physics, 23.06.2019 09:00, jadawada223
1,990,000,000,000,000,000,000,000,0 00,000 in scientific notation
Answers: 1
Physics, 23.06.2019 13:00, magemenproduct
Earth has a mass of 5.97 x 1024kg, and a mean radius of 6.38 x 106m. what would be the orbital speed and period of a satellite in orbit 1.44 x 108 m above earth?
Answers: 2
The time it takes for a wave to complete one cycle....
Mathematics, 09.04.2020 21:03
Mathematics, 09.04.2020 21:03
Mathematics, 09.04.2020 21:03
Mathematics, 09.04.2020 21:03