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...0.086] W = ∫-kx+βx^3 [From x = 0 to x = 0.086] W = -

**k**∫x + β∫x^3 [From x = 0 to x = 0.086] W = -kx^2/2 + βx^4/4...1 Answers · Science & Mathematics · 24/02/2014

... the same with the other coordinates, you get 3k-4-2=0 and thus

**k**=2 and**k**-4+2=0 and thus**k**=2. If you prefer, more rigorously, you can create...2 Answers · Science & Mathematics · 30/07/2011

...for convenience (1100 , 15°) - (1000 , 0°) = 291.5 , 77.6° that's a wind of 291.5

**k**/h at 77.6° east of south or 291.5**k**/h at 12.4° south of east When you...2 Answers · Science & Mathematics · 22/01/2016

The force stretching the spring is: F = m(a + g) = (3.9)(0.41 + 9.8) = 39.8 N The stretch of the spring: x = F /

**k**= 39.8 / 974 = 0.04 m = 4 cm2 Answers · Science & Mathematics · 02/03/2013

v = x^2 i + 2 j - y^2

**k**∇x v = | ..i .....j .....**k**..| ...........| ∂/∂x ∂/∂y ∂/∂z| ...........|..x^2 ..2..-y^2.| ∇x v = 2yi Errr, that's it.1 Answers · Science & Mathematics · 20/02/2013

This is a simple conservation of mechanical energy problem

**K**_f + U_sf =**K**_i + U_si 1/2 mv^2 + 0 = 0 + 1/2 kx^2 v = root(**k**/m)*x = 3.96 m/s1 Answers · Science & Mathematics · 23/10/2013

A change of 1 deg C = a change of 1

**K**Convert 0 C to**K**convert 1 C to**K**What is the difference? 1 C or 1**K**. Repeat for any other pairs of temperatures.4 Answers · Science & Mathematics · 09/10/2015

...Q/T = -25.11kJ / 273.15K = -0.0919 kJ/

**K**= -91.9J/**K**1 Answers · Science & Mathematics · 19/01/2018

Celsius [°C] = ([°F] − 32) × 5⁄9 [°F] = [°C] × 9⁄5 + 32 Kelvin [

**K**] = ([°F] + 459.67) × 5⁄9 [°F] = [**K**] × 9⁄5 − 459.67 Answer: 68F=20C=293.15K2 Answers · Science & Mathematics · 17/10/2010

### 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