Question
solve the following question plz
Find the volume by disk method revolving about y axis y =2x y = 0 y = 6 Find the average value of the function Use Laplace transforms to solve the following differential equation. A spring of natural length of 12 cm requires a force of 6.0 N to stretch it 3.0 cm. Find the work done in stretching it 8 cm. Find the work done in stretching it 6 cm. One end of a spa is a vertical rectangular wall 4.0 m wide. What is the force on the wall by the water if it is 1 m deep?
Explanation / Answer
8) Ly(s) -y(0) - 3y(s) = 0
y(s) = 1/(L+3)
gives y(t) = e^(3x)
b)F = kx
6 = k3
k = 2
WD = 1/2k(x1^2 - x2^2)
= (144-64)
= 80J
WD = (144-36)
= 108J