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...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

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

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

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

**for**v1 Answers · Science & Mathematics · 31/07/2019

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

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

...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

... 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

...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

...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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