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  1. ...h*f = hc/wl where f = frequency, wl = wavelength of photon, c = speed of light and h = unknown Planck constant. Now...  where W = work function of Cesium For wl = wl2 = 200nm, the electron has 4.11 eV of...

    1 Answers · Science & Mathematics · 06/02/2020

  2. d = (1/2)(a)(t^2) = 10.80 = (1/2)(9.81)(t^2). Time to hit the ground, t = 1.48 s. Horizontally, d = vt. v = d / t = 3.9 / 1.48 = 2.63 m/s.

    1 Answers · Science & Mathematics · 26/01/2020

  3. Nice implementation of kozyrev torsion theories. First you need to determine the ambient speed of time propagation and its relation to the time span it traverse. Is it a...

    5 Answers · Science & Mathematics · 23/07/2019

  4. (1/2)v^2 = (1/2)(65^2)+9.8(125) solve for v

    1 Answers · Science & Mathematics · 31/07/2019

  5. It takes about 30000 years for a signal to get there and another 30000 years for the reply to get here.

    2 Answers · Science & Mathematics · 07/04/2019

  6. Boy, I like the trajectory equation for this -- we don't need to solve for the time of flight. y = h + x·tanΘ - g·x² / (2v²·...

    2 Answers · Science & Mathematics · 07/05/2019

  7. ...force (up), and a friction force (to the left). b/ "constant speed" means "equilibrium". So the friction... = 708 N BONUS: You could solve for the coefficient of friction: f = µ*Fn, and you now...

    1 Answers · Science & Mathematics · 23/07/2019

  8. ... If you look at the equation for position Between t=7 and t=16...the heck would that be useful So we need to turn that into the standard "t"...end so I guess it will get up to speed of light and then destroy the universe.

    2 Answers · Science & Mathematics · 25/02/2019

  9. ...release does the mailbag reach the ground?  we need height and speed at t=4 h(4) = 1.1•4³ = 70.4 m v = h'.../2g = 52.8²/2•9.8 = 142.2 m time for that t = v/g = 52.8/9.8 = 5.39 s it reaches...

    1 Answers · Science & Mathematics · 18/09/2019

  10. ...p/p0)=10 log(0.5*10^6/20)=60 *0.025=1.5 Wave length= 343/349=0.12 m For the pressure equation you need the amplitude value. I have to guess Wave=sqrt(0.)5 sin wt, pressure will...

    2 Answers · Science & Mathematics · 22/10/2019

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