The correct order they go in is "1-4-2-3" The correct answer is D.
The blank answer is lines of force
Take into account that conduction is the process at which heat is propagated by the termical motion of the molecules, without a real desplacement of the molecules.
Based on the previous definition, the following is an example of heat transfer by condu
Given that,
Output power = 87 W
Decibel reading = 120 dB
We need to calculate the intensity of sound
Using formula of intensity of sound

Put the value into the formula





We need to calculate the distance
Using relation of power out[ut and intensity

Put the value into the formula



Hence, The distance is 2.63 m