So, according to the question:
distance = 90 miles
time = 1h 45min + 15 min + 1h = 3h
A(n) is a group of organs that work together to perform a common function.
2 answers:
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Complete Question
The complete question is shown on the first and second uploaded image
Answer:
The minimum mass of correct option is E
Explanation:
Free body diagram of the set up in the question is shown on the third uploaded image
The mass of board is
The length of the board is
The length extending over the edge is
The second mass is
Now to obtain we take moment about the edge of the platform
Substituting value
The speed of the wave with the given frequency and wavelength is 1.2m/s.
Given the data in the question;
- Wavelength of the wave;
- Frequency;
- Speed of the wave;
Wavelength is the distance over which the shapes of waves are repeated. It is the spatial period of a periodic wave.
It is expressed as;
Where v is velocity/speed and f is frequency.
Now, we can easily get the speed of the wave by substituting our given values into the expression above.
Therefore, the speed of the wave with the given frequency and wavelength is 1.2m/s.
Learn more about Speed, Frequency and Wavelength here: brainly.com/question/27120701