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
The launch proyectiles of kinematics allows to find the maximum initial vertical velocity of the body so that it just reaches the ceiling
v_{oy} = 2.56 m / s
Given parameters
- The ceiling height y = 3 m
To find
Projectile launching is an application of kinematics where on the x axis there is no acceleration or and on the y axis the acceleration is the acceleration of gravity (g = 9.8 m / s ^ 2)
In this case, the maximum vertical velocity that the body can have occurs when the velocity on the ceiling is zero.
v_y² = v_{oy}² - 2 g y
where v and v_{oy} are the initial velocity at the ceiling e initial, respectively, g the acceleration of gravity e and the height
0 = v_{oy}² - 2 g y
v_{oy} =
v_{oy} =
v_{oy} = 2.56 m / s
In conclusion with the kinematic of launch projectiles we can find the maximum initial vertical velocity of the body so that it just reaches the ceiling
v_{oy} = 2.56 m / s
learn more about projectile launch here:
brainly.com/question/10903823
By locating each neuron in a specific place so that they motor and yeah hopes this helps!
A
longitudinal wave is a mechanical wave that causes the medium to vibrate
parallel to the direction of the wave. Its wave’s forces travel through
multiple rarefactions and compressions where compression is the closest
distance in the longitudinal wave and rarefaction is the farthest distance
apart in the said wave.