Answer:
40
Step-by-step explanation:
Answer:
The ratio of the intensities is roughly 6:1.
Step-by-step explanation:
The intensity I() of an earthquake wave is given by:
<em>where P: is the power ans d: is the distance. </em>
Hence, the ratio of the intensities of an earthquake wave passing through the Earth and detected at two points 19 km and 46 km from the source is:

<em>where I₁ = P/4πd₁², d₁=19 km, I₁ = P/4πd₂² and d₂=46 km </em>

Therefore, the ratio of the intensities is roughly 6:1.
I hope it helps you!
Answer:
9(x-12)=24
Step-by-step explanation:
Answer:
A = 800, B = 200, C = 400 Andy D = 400
Step-by-step explanation:
Step-by-step explanation:
that means she spent 3months in Spain to learn Spanish while she spent 9months in colombia