Homework Statement
What is the magnitude E of the electric field at point P? Throughout this part, express your answers in terms of the constant k, defined by k = 1/(4πE0)
To solve this question, I am trying to walk through the hint process.
Question 1: Find the magnitude dE of the electric...
OK the horizontal component of Nb should be Nbcos60° and the vertical component of Nb should be Nbsin60°. I think I was tired and messed up the trig. Thanks for the help.
Homework Statement
Given: A 300 kg walkway supported by two rollers(at points A and B) with center of mass at G.
Find: The tension T in the horizontal cable attached to the cleat at point B and the force under the roller at A.
Homework Equations
∑M = 0
ΣFx = 0
ΣFy = 0
The Attempt at a...
Homework Statement
A = 20 cm
Given the graph, what is the phase constant(in degrees)?
(I have already solved for amplitude and frequency)
Homework Equations
x(t) = A cos (wt + ϕ)
The Attempt at a Solution
x(t) = A cos (wt + ϕ)
Taking from t = 0, we find:
10 = 20cos(w*0 + ϕ)
10 = 20cos(ϕ)
1/2...