The sound level measured in a room by a person watching a movie on a home theater system varies from 50 dB during a quiet part to 70 dB during a loud part. Approximately how many times louder is the latter sound

100 times

Explanation:

The sound intensity level β of a sound with an intensity I is mathematically given as:

, Where =  lowest sound intensity for a normal person at a frequency of 1000 Hz

For the quiet part:

For the loud part:

Hence,

70-50 =

= 2

= 100

= 100

Therefore, the latter sound () is 100 times louder than the former sound ()

explanation: in any substance/object, the particles inside it (atoms/molecules) constantly move in random directions and with random speeds (this motion is called brownian motion). as a result, the particles have some kinetic energy (which is proportional to the temperature of the substance).

explanation:

have a great day!

correct it is c.) b b