Physics, 04.02.2020 19:56, Nextlevel3
Cell phones depend on both mechanical and electromagnetic waves to be useful. which answer below correctly identifies how each wave is used in cell phones?
mechanical waves allow the buttons to be pressed to make a call; electromagnetic waves allow a signal to be picked up when making a call
mechanical waves light up the screen; electromagnetic waves create the sound when the phone is ringing
mechanical waves allow the cell phone to emit a sound when ringing; electromagnetic waves allow a signal to be picked up when making a call.
mechanical waves allow a signal to be picked up when making a call; electromagnetic waves allow the cell phone to emit a sound when ringing
Answers: 2
Physics, 21.06.2019 13:50, karenrivera22
Which of the following describes something an engineer would probably do first when developing new technology meant to reduce ocean pollution? o a. evaluate the benefits and challenges of using certain chemicals to purify water. o b. research new scientific findings in regard to ocean cleanup. o c. identify the need to reduce ocean pollution. o d. research what has been done in the past to clean up oceanic oil residue.
Answers: 1
Physics, 22.06.2019 11:30, smilequi9653
Considering only the earth's rotation, determine how much later the asteroid would have had to arrive to put the explosion above helsinki at longitude 25Ëš e? this would have obliterated the city.
Answers: 1
Cell phones depend on both mechanical and electromagnetic waves to be useful. which answer below cor...
Mathematics, 21.05.2021 19:50
Mathematics, 21.05.2021 19:50
Mathematics, 21.05.2021 19:50
Mathematics, 21.05.2021 19:50
Mathematics, 21.05.2021 19:50