DrippyGanja
26.11.2019 •
Physics
1. a mechanical wave
a. carries energy from one place to another
b. moves through solids, liquids,and gasses
c. is created when a source of energy creates a vibration
d. all of the above
2. in refraction when a wave travels from one medium to another
a. changes speed
b. stays in step
c. always moves in the same direction
d. travels in the opposite direction
plzzz me !
i understand that it is wrong to give answers but i need them for unit 3 lesson 12 , me graduating rides on this
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Ответ:
Ответ:
The speed at the first quarter checkpoint is 0.74 m/s. The speed at the second quarter checkpoint is 1.40 m/s. The speed at the third quarter checkpoint is 1.61 m/s. The speed at the finish line is 1.89 m/s.
Explanation: I did the assignment and got it correct :)