Answer:
The intensity of sound at rock concert is 10¹⁰ greater than that of a whisper.
Explanation:
The intensity of sound is given by;

where;
I is the intensity of the sound
I₀ is the threshold of sound intensity = 1 x 10⁻¹² W/m²
The intensity of sound at a rock concert

The intensity of sound of a whisper

Thus, the intensity of sound at rock concert is 10¹⁰ greater than that of a whisper.
Either of them is. 1/(the other one). That's 'C' .
Answer:
0.915 Nm
Explanation:
1 revolution = 2π rad
We can use the following equation of motion to find out the acceleration acting on the disk

where
= 0 rad/s is the initial velocity of the can when it starts from rest,
is the angular distance traveled,
is the angular acceleration of the disk, which we care looking for:


The moment of inertia of the solid disk is:

where m is the mass and R is the radius of the disk
The net torque applied is
It’s carbon and it’s heat value