Answer:

Explanation:
The problem can be solved easily, because the relationship between intensities
and
at distances
and
respectively can be written as:
Where:

In this case:

Solving for 

Answer: In or discussion of earthquake we want to answer the following questions side has moved to the left, we say that the fault is a left-lateral strike-slip fault. Surface waves behave like S-waves in that they cause up and down and side. Aftershocks are particularly dangerous because that can cause further .
Explanation: Have a nice day!!!
<span>In real machines, efficiency is always less than 1 .</span>
Answer:
D. Frequency
Explanation:
The energy of an electromagnetic wave is proportional to frequency, mathematically it is expressed as;
E ∝ f
E = hf
where;
h is Planck's constant = 6.626 x 10⁻³⁴ Js
The equation above can also be expanded to;

where;
c is speed of light = 3 x 10⁸ m/s
λ is the wavelength of the electromagnetic wave
Since the speed of light is constant, we can conclude that the energy of the electromagnetic wave is directly proportional to its frequency and inversely proportional to its wavelength.
Therefore, the correct option for direct proportionality is FREQUENCY
B is the answer for your question the answer is b an elevator slowing down