Answer:
1779299.7m
Explanation:
From formulas in acoustic sound, we know that sound intensity is inversely proportional to the square of the distance away.
Thus;
I2/I1 = r2²/r 1²
So,
∆L = 10 log (I2/I1)
Where ∆L is the intensity of music and r1 and r2 are distances away.
∆L=10log 10(r1²/r2²)
∆L=10log 10(r1/r2)²
∆L= - 20log 10(r1/r2)
r2 = r1•10^(-∆L/20)
From the question,
∆L = 116 Db
r1 = 2.82m
Thus,
r2 = 2.82 x 10^(116/20)
r2 = 2.82 x 630957.34 = 1779299.7m
I think the word you want is "incandescent".
Answer:
The gravitational potential energy (PE) of a particle or a system of particles is a form of energy that exists due to its position. Mathematically, it is expressed as the product of mass, gravitational acceleration, and the vertical displacement.
Explanation:
Given data:
Mass of the storage box, 
Height, 
The gravitational potential energy of the storage box can be expressed as,



Answer:
final velocity will be equal to 8.28 m/sec
Explanation:
Let the mass is m
Height fro which it is fallen h = 3.5 m
Acceleration due to gravity 
We have to find the final velocity of the mass
As the mass is dropped from rest so initial velocity is 0 m/sec
Using energy conservation 
So 


So final velocity will be equal to 8.28 m/sec