Answer
Given,
Sound Power, P = 600 W
a) Intensity of sound,
r = 5 m
we know,



I = 1.91 W/m²
b) Sound intensity

I₀ = 10⁻¹²


c) Sound experienced by the Phil
β₁ = 123 - 23 = 100 \ dB
distance from the sound
again using sound intensity formula



where, I = P/A


r = 69.09 m
Distance where Phil will experience same sound intensity without earplug is equal to r = 69.09 m
Kinetic energy is the energy of mass in motion, the kinetic energy that an object has is because of it's motion.Heavier objects that are moving have more kinetic energy than lighter ones.
Answer:
The First law of motion
Explanation:
The firat law states that an object either remains at rest or continues to move at a constant velocety unless acted upon by an external force
Velocity = The speed and direction that an object is moving at
Examples of Newton's three law of motion.
First law of motion: A rocket being launched up in the atmosphere.
Second law of motion:while riding a bicycle, a bicycle acts as a mass and our legs pushing on the pedals of the bicycle is the force.
Third law of motion:when we jump off from the boat,the boat moves backward.
Hope,it will helpyouu!