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a=dv/dt=g-kv. Put y=g-kv. dy/dt= -

**k**dvdt=-ky dy/dt= -**k**, y=y0 exp (-kt). This gives g-kv= y0 exp(-kt) kv...2 Answers · Science & Mathematics · 11/02/2019

From ω=√︎(

**k**/μ) you see that you have to assess how μ changes from CH to CT...1 Answers · Science & Mathematics · 13/09/2019

... + 492N*sin31º = 600 N friction force f = µ

**k***Fn = 0.59 * 600N = 354 N net horizontal force Fnet = ...1 Answers · Science & Mathematics · 28/05/2019

From Q, the force =

**k*** Q*2Q/L² at 0° From 4Q, the force =**k***...1 Answers · Science & Mathematics · 02/05/2019

field E = vector Σ kQ / d² where

**k**= 8.99e9 N·m²/C² x-direction: The two charges on the...1 Answers · Science & Mathematics · 10/09/2019

... many kinds of plywood. I found this, 0.13 W/m•

**K**but that may not match your number. 58-cm2 ?? guessing that thus...1 Answers · Science & Mathematics · 12/02/2019

Coulomb's law: F =

**k**.q1.q2 /r² Newton's gravitational: Fn = G.m1.m2...2 Answers · Science & Mathematics · 05/09/2019

...position s(t) = ∫ v(t) dt s(t) = ∫ [2sin(t) i + 2cos(t) j + t

**k**] dt = -2cos(t) i + 2sin(t) j + ½t²**k**+ C...] and so unit T(t) = [2sin(t) i + 2cos(t) j + t**k**] / √[4 + t²] d) the tangential component of the acceleration...1 Answers · Science & Mathematics · 29/06/2019

electrostatic force F = kQq / d² where

**k**= 8.99e9 N·m²/C² first condition: -0.119 N = 8....2 Answers · Science & Mathematics · 05/09/2019

...the event. from the preliminary test, we can find the spring constant

**k**by summing forces to zero. kx - mg = 0 kx = mg...by the cord at max stretch is F = kx F = (**k**'/25.1)(30.4) F = (5(mg/1.65)/25.1)(30.4) F...4 Answers · Science & Mathematics · 07/10/2019