Biology, 26.11.2019 06:31 rosieanneanney
Allen and his lab partner each held a tuning fork, frequency 440 hz, in their hands. allen tapped his tuning fork with a mallet and they listened to the sound it made. "wait a minute! " exclaimed allen's partner. "my tuning fork is vibrating too! " sure enough, both tuning forks were vibrating although only allen hit his with the mallet. how can you explain this? a) sound waves are transferred to the tuning fork. b) sound particles caused the second tuning fork to vibrate. c) sound energy travelled as waves from one tuning fork to the other. d) sound energy travelled as particles from one tuning fork to the other.
Answers: 3
Biology, 22.06.2019 02:00
Which of the following can be reduced by the use of renewable energy sources? a. social costs b. economic costs c. environmental costs d. all of the above select the best answer from the choices provided a b c d
Answers: 1
Biology, 22.06.2019 05:30
Identify the composition of oceanic and continental crystal rocks.in a model of earth’s interior,where would these rocks appear?
Answers: 2
Biology, 22.06.2019 05:40
Identify characteristics of energy from the sun. check all that apply. almost all of the energy on earth comes from the sun. energy from the sun is known as mechanical energy. the energy in fossil fuels originally came from the sun. plants convert the energy of sunlight into chemical energy.
Answers: 1
Biology, 22.06.2019 08:50
You are observing different types of cells in your science lab. one cell has many chloroplasts. what is the most likely function of this cell? a. energy production b. photosynthesis c. reproduction d. digestion
Answers: 1
Allen and his lab partner each held a tuning fork, frequency 440 hz, in their hands. allen tapped hi...
Social Studies, 03.03.2021 19:40
Geography, 03.03.2021 19:40
Biology, 03.03.2021 19:40
Mathematics, 03.03.2021 19:40
Biology, 03.03.2021 19:40
History, 03.03.2021 19:40
History, 03.03.2021 19:40
Engineering, 03.03.2021 19:40
English, 03.03.2021 19:40
Chemistry, 03.03.2021 19:40