PLEASE ANSWE
If a satellite or spaceship explodes in outer space, you can see the explos...
Social Studies, 06.03.2020 21:34, kaylaamberd
PLEASE ANSWE
If a satellite or spaceship explodes in outer space, you can see the explosion from a distance, but you cannot hear it. Why?
A. Light is a mechanical wave and needs a medium to travel through, while sound is an electromagnetic wave.
B. Light waves travel very fast and sound waves travel much slower.
C. Sound waves transmit energy, while light does not transmit energy
D. Sound is a mechanical wave and needs a medium to travel through, while light is an electromagnetic wave.
Answers: 2
Social Studies, 22.06.2019 10:30, freemankellie
What statement about risks in social and behavioral sciences research is most accurate: anonymizing data effectively manages the risk of creating emotional distress. risks are specific to time, situation, and culture. there are never any risks. if a study offers potential benefits, it is not necessary to minimize risks.
Answers: 2
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Is it true the ancient egyptians created a calendar that had 10 days in a week
Answers: 1
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