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A. What is the frequency of a photon with a wavelength of 8.35 multiplied by 10-5 m? (The speed of light in a vacuum is 2.998
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A rock of a mass 0.2kg is attatched to a 0.75m long string and swung in a vertical plane. What is the slowest speed that the
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Answers (6)
A. What is the frequency of a photon with a wavelength of 8.35 multiplied by 10^-5 m? (The speed of light in a vacuum is 2.998 multiplied by 108 m/s. Planck's constant is 6.626 multiplied by 10^-34 J·s.) B. What is the wavelength of a photon with a
just to clairify, you're suffesting that there is no tension when the rock is at the top of the swing?
Oh, 'at the top' great, thanks for your help :)
Oh, so the Centripetal force= mg how though?
Well, work= force x displacement (as you stated) but if he lifts his pencil 20 cm, then lowers it back down to 20 cm, his displacement= 0 therefore, he did 0 joules of work
multiply each term by 3, and solve for y. 3y + 3(5/3) = 3x + 6 3y = 3x + 6 - 5 3y = 3x + 1 3y/3 = 3x/3 + 1/3 y= x + 1/3
