Module 6

# Module 6 - Module 6 Problems for this module are Chapter 16...

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Module 6 : Problems for this module are : Chapter 16 1. . Light is an electromagnetic wave and travels at a speed of 3 00 x / . - , 108m s The human eye is most sensitive to yellow green light which . - . has a wavelength of 5 45 x 10 7 m What is the frequency of this light? = v λ = T fλ = . - . / = . × - v 5 45 x 10 7 m3 00 x 108m s 5 50459 1014 s 1 = = f 1T 1 . × - = . × - 5 50459 1014 s 1 1 81667 10 15 Hz . 19 Two blocks are connected by a wire that has a mass per unit length of . - / . . 8 50 x 10 4kg m One block has a mass of 19 0 kg and the other has a mass . . of 42 0 kg These blocks are being pulled across a horizontal frictionless floor . by a horizontal force P that is applied to the less massive block A transverse / ( wave travels on the wire between the blocks with a speed of 352 m s relative ). to the wire The mass of the wire is negligible compared to the mass of the . . blocks Find the magnitude of P : Tension in the wire = + = . . + . = . . T Pm2m1 m2 P42 0 kg19 0 kg 42 0 kg P42 0 kg61 0 kg : Velocity of transverse wave = = = V Tρ V2ρ T = . . = / . - / . . . P V2ρ61 0 kg42 0 kg 352 m s28 50 x 10 4kg m61 0 kg42 0 kg 152 96 N . 37 , As the drawing illustrates a siren can be made by blowing a jet of air . through 20 equally spaced holes in a rotating disk The time it takes for . successive holes to move past the air jet is the period of the sound

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Module 6 - Module 6 Problems for this module are Chapter 16...

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