The right answer is b) copper
For a pipe open at both ends, fund frequency (Fo) given byFo = v /2L
v = velocity of sound = 340 m/s (at about 20ºC)
Fo = 340/2*5.34 = 31.8 Hz
While for the one closed at one end and open at the other end...
For a pipe open at one end, fund frequency (Fo) given byFo = v/4L
Fo = 340/4*5.34= 15.9 Hz
I wouldn't participate in any event, I'd leave the track and field team.
A person with antisocial personality disorder typically must be older than the age of 18 years and have shown some evidence of a conduct disorder. This is true statement.
<h3>What is antisocial personality disorder?</h3>
All 10 personality disorders are categorized into three clusters by the Diagnostic and Statistical Manual of Mental Disorders (DSM 5) (A, B, and C). One of the four cluster-B disorders, which also includes borderline, narcissistic, and histrionic disorders, is antisocial personality disorder.
Dramatic, emotional, and erratic relationships with people are common symptoms of all of these diseases. The only personality condition that cannot be diagnosed in childhood is antisocial personality disorder. To meet the diagnostic criteria for ASPD before the age of 18, the patient must have previously received a conduct disorder (CD) diagnosis by the time he or she became 15 years old.
Learn more about antisocial personality disorder here:
brainly.com/question/4031840
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Answer:

Explanation:
Given that,
Force force acting on the Skater's rocket is 220 N
Resistive force acting on it, F' = 30 N
Mass of Shelby, m = 60 kg
We need to find the acceleration of Shelby. Net force acting on Shelby is given by :
Net force = 220-30
= 190 N
The formula of net force is :
F = ma
a is acceleration of Shelby

So, the acceleration of Shelby is 