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### A 5kg block is initially at rest on a rough surface with friction coefficients μs= 0.5 and μ

**k**= 0.2.?... Then the (kinetic) friction force is Fk = µ

**k***m*g = 0.2 * 5kg * 10m/s² = 10 N ← using a nice round ...2 Answers · Science & Mathematics · 15/12/2019

This question has nothing to do with Personal Finance, and you will not get a useful answer here.

2 Answers · Science & Mathematics · 29/10/2019

... frequency of spring in harmonic motion is given by? ω = sqrt(

**k**/m) = 2.13 s^-1 If at t=0 the mass is in negative amplitude (x = -...2 Answers · Science & Mathematics · 07/02/2019

...it goes in simple harmonic motion, derive an ex(p)ression fo(r) the spring constant,

**k**if the spring compresses a distance l (L for clarity) before bring block1...2 Answers · Science & Mathematics · 07/08/2019

500 =

**k**^x^2 x = √500/150 = √10/3 = 1.826 m F =**k***x = 1.826*150 = 274 N1 Answers · Science & Mathematics · 13/04/2019

2*W*h =

**k***x^2**k**= 1000*20/(20-10)^2 = 200 N/m1 Answers · Science & Mathematics · 06/11/2019

... = ½kA² - ½k(A/2)² mv² =

**k**(A² - (A/2)²) v² =**k**/m(A² - (A/2...2 Answers · Science & Mathematics · 10/07/2019

.... To get total potential we simply add, Total potential at A =

**k**(+q)/3 +**k**(-2q)/6 = kq(1/3 – 1/3) = 0 Total potential at B =**k**(+q...3 Answers · Science & Mathematics · 17/02/2019

... to gravity potential. PS = PE ½kx² = mgh

**k**= 2mgh / x²**k**= 2(0.105)(9.81)(2.31) / 0.115²**k**= 359.835992...**k**...3 Answers · Science & Mathematics · 29/10/2019

... in coulombs r is separation in meters

**k**= 8.99e9 Nm²/C² (9e9)(1.602e-19)(14•1.602e-19) / d = 28.7 d = (9e9...1 Answers · Science & Mathematics · 28/11/2019