Physics, 14.07.2019 23:30 akeemedwards12
Which of the following is a true statement about the differences between electromagnetic and mechanical waves? a electromagnetic waves are caused by vibration of particles and mechanical waves are caused by frequency, not amplitude. b electromagnetic waves are considered a periodic disturbance and mechanical waves are considered a disturbance. c electromagnetic waves require a medium to travel in and mechanical waves do not require a medium. d electromagnetic waves travel in a vacuum and mechanical waves do not travel in a vacuum.
Answers: 1
Physics, 21.06.2019 17:50, Riplilpeep
Which describes an image that can be produced by a concave lens? the image is real and smaller than the object. the image is virtual and larger than the object. the image is virtual and smaller than the object. the image is real and larger than the object.
Answers: 3
Physics, 21.06.2019 20:50, goldenblobslime
Identify the type of synthetic material used in each object
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Physics, 22.06.2019 07:30, bell777
30 points - when can a theory be modified if a new type of technology allows for new observations that raise new questions? a. immediately, while the questions about the theory are being asked b. after new hypotheses related to the theory are tested in experiments c. only after the new observations disprove all parts of the theory d. while scientists begin to think about how the theory could improve
Answers: 1
Physics, 22.06.2019 09:10, kingdesto3481
Which lists the organs in the correct order as food passes from the mouth to anus?
Answers: 1
Which of the following is a true statement about the differences between electromagnetic and mechani...
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