unit6mathassgn.docx

unit6mathassgn.docx - PHY 1001 Unit Six Motion Mathematical...

• Homework Help
• 6

This preview shows page 1 - 3 out of 6 pages.

PHY 1001 Unit Six – Motion Mathematical Assignment 1. A wave is sent back and forth along a rope 4 m long with a mass of 0.6 kg by exerting a force a force of 30 N. Calculate the linear mass density of the rope (in kg/m). Key Idea Stock of Data and M= 0.6 kg and length l =4m The Linear mass density depends only on the length and mass of the rope and it does not depends upon the force Solution Linear density is ρ = M/ l = 0.6 / 4 = 0.15 kg / m Sanity Check ρ = 0.15 kg/ m 2. A 3 Hz wave has a wavelength of 0.4 m. Calculate the speed of the wave (in m/s). Key Idea Stock of Data and calculate the speed of wave by using the formula: v = λν wavelength λ = 0.4 m ,frequency ν = 3 Hz = 3 (1/s) Solution v = λν = 0.4 ( 3 ) = 1.2 m/s Sanity Check v=1.2m/s 3. A wave travels at 60 m/s and has a wavelength of 2.8 m. Calculate the wave frequency (in Hertz). Key Idea Stock of Data and To calculate the frequency of a wave Frequency ν = v /λ wavelength λ = 2.8 m velocity v = 60m/s Solution ν = v/ λ = 60 / 2.8 ≈ 21.43 Hz Sanity Check ν =21.43 Hz 4. Calculate the wavelength (in m) of the note middle "C" (frequency = 256 Hz) in air at room Want to read all 6 pages? Want to read all 6 pages?

You've reached the end of your free preview.

Want to read all 6 pages?

{[ snackBarMessage ]} "Before using Course Hero my grade was at 78%. By the end of the semester my grade was at 90%. I could not have done it without all the class material I found."
— Christopher R., University of Rhode Island '15, Course Hero Intern

What students are saying

• 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.

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

• 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.

Dana University of Pennsylvania ‘17, Course Hero Intern

• 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.

Jill Tulane University ‘16, Course Hero Intern