Answer:
Waves carry energy from one place to another. Because waves carry energy, some waves are used for communication, eg radio and television waves and mobile telephone signals. There are many types of waves including sound waves, water waves and all the parts of the electromagnetic spectrum.
Explanation:
Hey there!
When light changes speed, it REFRACTS.
Your answer is going to be option C.
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S=Vt
110=V(72)
110/72=V
V=1.527m/s
X=1/2 at^2
3.1=1/2 a *0.64
a=9.68
v=at
v=0.8*9.6875=7.75
Answer:
B -- Cobalt and iron
Explanation:
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