Answer:
Monday Video: 5.4.20 Section 18.5
Work due: 18.5 Worksheet
CW
Tuesday Video: 5.5.20 Section 18.6
Work due: 18.6 Worksheet
HW
Wednesday Video: 5.6.20 Section 18.7
Work due: 18.7 Classwork
CW
Thursday Video: 5.7.20 Section 18.7
Work due: 18.7 Homework
HW
Friday Video: 5.8.20 Section 18.5-18.7
Work due: Textbook page 615 #5-19 (not #13)
HWaccuracy
Explanation:
Answer:
C Landscaper
Explanation:
From what I know about landscapers and from the description that makes the most sense.
Answer:
4
Explanation:got it right on edg.
Answer:
A. 0.0450
B. 4
C. 0.25
D. 37.68
E. 6Hz
F. -0.523
G. 1.5m/s
H. vy = ∂y/∂t = 0.045(-37.68) cos (25.12x - 37.68t - 0.523)
I. -1.67m/s.
Explanation:
Given the equation:
y(x,t) = 0.0450 sin(25.12x - 37.68t-0.523)
Standard wave equation:
y(x, t)=Asin(kx−ωt+ϕ)
a.) Amplitude = 0.0450
b.) Wave number = 1/ λ
λ=2π/k
From the equation k = 25.12
Wavelength(λ ) = 2π/25.12 = 0.25
Wave number (1/0.25) = 4
c.) Wavelength(λ ) = 2π/25.12 = 0.25
d.) Angular frequency(ω)
ωt = 37.68t
ω = 37.68
E.) Frequency (f)
ω = 2πf
f = ω/2π
f = 37.68/6.28
f = 6Hz
f.) Phase angle(ϕ) = -0.523
g.) Wave propagation speed :
ω/k=37.68/25.12=1.5m/s
h.) vy = ∂y/∂t = 0.045(-37.68) cos (25.12x - 37.68t - 0.523)
(i) vy(3.5m, 21s) = 0.045(-37.68) cos (25.12*3.5-37.68*21-0.523) = -1.67m/s.
