If two similar waves are traveling in the same medium, then they have same wave velocity. so we can infer that
Now, as per the formula ~ we know that :
Now, we can write it as :
And it's also given that frequency of wave A is 3 times that of frequency of wave B.
So, let's add the relation to our equation ~
So, choice C is correct ~
Answer:
- Help overcome anxiety.
Explanation:
An effective speech requires a passionate and confident speaker who possesses enough strength and courage to not only face the audience but convince them through his through research, knowledge, and communication skills required to effectively deliver the topic he/she is discussing.
As per the question, 'imagining oneself as a nervous yet successful speaker' functions as a tool to 'assist in overcoming anxiety(to face the crowd)' and presenting your ideas more confidently. This positive attitude would assist in convincing the audience more constructively(through efficiently conveying the ideas) and help evoke the desired response from them.
It says 'evidence' so I'm going to say statistic...
Answer:
this was a week ago but sry i couldnt
answer sooner i never read the book.Explanation:
Answer:
a ) 10 : 3
b ) boys = 
girls
Explanation:
total number of students = 78
number of boys = 60
number of girls = 78 - 60 = 18
ratio of boys to girls = 60 : 18 = 10 : 3
