a) GPE became SPE mgh = ½

**k**x² 5**k**g * 9.8m/s² * h = ½ * 4900N/m * (0.22m)² = 119 J h = 2.42 m b) a = F/m =**k**x / m = 4900N/m * 0.22m / 5**k**g = 216 m/s² c) GPE = SPE + KE 119 J...1 Answers · Science & Mathematics · 11/10/2020

ω = √(

**k**/m) = √(5**k**g/s² / 0.25**k**g) = 4.47 rad/s Measured from the new equilibrium...1 Answers · Science & Mathematics · 24/09/2020

the equation:

**k**= – F/x. Where**k**is the spring constant, F is the force applied over x, and x is the displacement by the spring F =mg Subbing in we get**k**= mg/x N/m So ma**k**e sure to convert cm to m1 Answers · Science & Mathematics · 15/10/2020

friction = µ

**k*** normal force f = µ**k*** (mg +Fy) = 0.9*(12**k**g*9.8m/s² + 40N) = 142 N acceleration = net force / mass a = (150N - 142N) / 12**k**g = 0.68 m/s²1 Answers · Science & Mathematics · 01/10/2020

PE = .5kx^2 where

**k**is a constant and x is the length stretched PE= mgh...1 Answers · Science & Mathematics · 12/10/2020

...difference must be absorbed by the spring. then use E = ½

**k**d²**k**is spring constant in N/m you are missing**k**, but you need...2 Answers · Science & Mathematics · 16/10/2020

... from ma = 7*3 = 21N But the net force = F - mg*μ

**k**-> F = 21 + 7*9.8 * 0.2 ~= 34.7N To accelerate the small bloc**k**...1 Answers · Science & Mathematics · 14/10/2020

By

**k**inematics: acceleration = net force / mass = -µ**k***m*g / m = -µ**k***g a = -0.15 * 9.8m/s² = -1.47 m/s² ...1 Answers · Science & Mathematics · 01/10/2020

frequency f = (1/2π)*√(

**k**/m) + (1/2π)*√(7600**k**g/s² / 105**k**g) f = 1.35 Hz ◄ period T = 1/f = 0.739 s ◄ Hope this helps!1 Answers · Science & Mathematics · 12/10/2020

use the energy to get spring constant PE = ½

**k**d² = 18**k**= 2•18/0.02² = 90000 N/m f = (1/2π)√(**k**/M) = 4 √(**k**/...1 Answers · Science & Mathematics · 16/10/2020