<h2>The intensity of siren is 0.015 W m⁻²</h2>
Explanation:
The intensity of sound is inversely proportional to the square of distance between source and the observer .
Thus Intensity at a distance 25 m is I₁ ∝ I
Similarly the intensity at a distance 50 m is I₂ ∝ II
Dividing II by I , we have
= = =
Thus I₂ = x 0.06 = 0.015 W m⁻²
combustion of fossil fuels would be the correct answer when dealing with the alteration of the carbon cycle.
There are four characteristics of a state. population,government,sovereignty,and territory.
Answer: option B
Explanation: when a neutral atom loses an electron or gains a positive charge electron, it becomes a positive ion (positively charged) and when an neutral atom gains an electronic charge or losses a positive charge electron, it becomes a negative ion (negatively charged).
In a stronger gravitational field a given mass will have a larger weight.