{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Answer 1 - Answer the following questions based on the...

Info icon This preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Answer the following questions based on the following figure. 1. What is the peak amplitude of this wave? + 5 or -5 1. What is the instantaneous amplitude of this wave at the following times: 0, 0.75, 1.5, 2.25, and 3 seconds? 0, 0, 0, 0, and 0 1. Based on the above values, calculate the RMS amplitude of this wave. 0 2. Would the RMS amplitude be different if instantaneous amplitudes at times 0.125, 0.625, 1.125, 1.625, and 2.125 s were used? Yes, because the instantaneous amplitude at each of these points is + 5. Based on these values, the RMS amplitude is 5. In your opinion, is it better to pick fewer or more points to calculate RMS amplitudes? The most accurate RMS value is obtained if a large number of instantaneous amplitudes is picked. More important, these points must be close to each other. For example, if 100 points between times 0 and 0.5 s are picked, this gives a more accurate RMS value than if only 10 points are picked. Calculate the frequency and time period of the following wave. Frequency: 10 cycles/1 s = 10 Hz Time period: 1/10 = 0.1 s Answer the following questions. 1. Wave A has a frequency of 100 Hz. Wave B completes one cycle in 10 s. What can be said about the two waves? a. They have the same frequency b. They have the same amplitude c. Wave A has a higher frequency than wave B d. Wave B has a higher frequency than wave A Wave C completes 300 cycles in 30 seconds. Calculate the time period and frequency of this wave. If the wave completes 300 cycles in 30 seconds, it will take 0.1 s (30/300) to complete one cycle. Hence, the time period is 0.1 s. The frequency of this wave is 10 Hz. This can be calculated either using number of cycles per second (300/30) or by taking the reciprocal of the time period (1/0.1) 2. Plot the waveform (time and displacement on horizontal and vertical axes, respectively) of wave C showing at least three complete cycles. Assume that the peak displacement of wave C is 10 mm. Frequency: 10 Hz, Time period: 0.1 s, Peak displacement: 10 mm Can be drawn in any of the following ways. ...
View Full Document

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern