Answer: Wave A is a lower frequencey and Wave B is a higher frequencey
Explanation:
this should help u with question 1 and 2
Answer:
3 p.m most probably.
Explanation:
They found it at Monday 5 pm so its done before that time so its 3 p.m
1. Iron fillings are magnetic, so use a magnet to pull the iron fillings out of the mix.
2. Then you can put the salt and sand mixture into water, since salt is soluble, and the salt will dissolve, leaving you with sand.
(P1V1/T1)=(P2V2/T2)
I just took the test and this should be correct