Author Question: What is the intensity level of a sound with intensity 10-3 W/m2? A) 96 dB B) 30 dB C) 79 dB D) ... (Read 56 times)

kellyjaisingh · **on:** Jul 27, 2018

What is the intensity level of a sound with intensity 10-3 W/m2?

A) 96 dB
B) 30 dB
C) 79 dB
D) 90 dB
E) 60 dB

Question 2

State the difference between pure translational and pure rotational motion.

What will be an ideal response?

johnpizzaz · **Reply #1 on:** Jul 27, 2018

Answer to Question 1

D

Answer to Question 2

If an object has only (pure) translational motion every particle in it has the same instantaneous velocity, which means that the object is not rotating. An object may have only (pure) rotational motion - motion about a fixed axis if all of the particles of the object have the same instantaneous angular velocity and travel in circles about the axis of rotation.