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45ghfg7eefgdf

Questions and answers by 45ghfg7eefgdf

Questions (2)

Question 2Waves are _________. a particles b matter c forces d vibrations
1. 1 answer
2. 16 views
Question 3The angle of reflection is: a 180 degrees to the angle of incidence b opposite to the angle of incidence c 90 degrees
1. 5 answers
2. 30 views