Answer:
air does not have a modulus of rigidity.
Explanation:
Since air is completely elastic medium, that is, it does not have a modulus of rigidity, therefore sound waves in air are longitudinal.
Answer: An individual living creature is called an organism.
There are many characteristics that living organisms share. All living organisms: respond to their environment.
Speed=Distance/Time
Distance=40m,time=5.79seconds
S=40/5.79
=6.908m/s
<u>Answer:</u>
Force = 20N
acceleration (a) = 1.5 m/s²
Mass of object (m) = ?
<u>From Newtons II law</u>
<em> F = m. a N</em>
m = F/a
m = 20/1.5
<em> m = 13.34 Kg</em>
<em>Mass of an object is 13.34 Kg</em>
The correct answer to this question is false
