Complete Question
The complete question is shown on the first uploaded image
Answer:
The velocity is
in positive x -direction
The speed is 
Explanation:
From the question we are told that
The distance from the house to truck is D = 20 m
The distance traveled back to retrieve wind-blown hat is d = 15
The distance from the wind-blown hat position too the truck is k = 20 m
The total time taken is t = 75 s
Generally when calculating the displacement the Justin's backward movement to collect his wind - blown hat is taken as negative
Generally Justin's displacement is mathematically represented as

=> 
Generally the average velocity is mathematically represented as

=> 
=>
Generally the distance covered by Justin is mathematically represented as

=> 
=> 
Generally Justin's average speed over a 75 s period is mathematically represented as

=> 
=> 
In that email, I will tell my relative in the United states that the transition to capitalism now implies that we work for longer hours with less pay.
<h3>What is capitalism?</h3>
The term capitalism means a system in which the means of production is controlled by individuals rather than by the state. Hence, monopoly is possible in a capitalist economy.
In that email, I will tell my relative in the United states that the transition to capitalism now implies that we work for longer hours with less pay and we do not have the social and job security that was once guaranteed in a socialist/communist economy.
Learn more about capitalism:brainly.com/question/679709
#1
For closed pipe the fundamental frequency will be given as




#2
For open pipe the wavelength for Nth harmonic will be given as


#3
for a closed pipe the frequency is given as

here for third harmonic n = 3

now plug in all values



#10
since in the given figure there are three complete loops
so in this case the <em>number of harmonics are THREE</em>