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Korolek [52]
3 years ago
12

Assume that you are testing the Orders database introduced in Watt (2014) - Appendix C. Discuss the problems and possible conseq

uences of using the Orders database. Provide examples of how you would address any problems that you identified.
Computers and Technology
1 answer:
madreJ [45]3 years ago
6 0

Answer:

129 \frac{2}{?} 23.4. \div 164 \times 5y1 + . \\ .00487ggh

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The equation of certain traveling waves is y(x.t) = 0.0450 sin(25.12x - 37.68t-0.523) where x and y are in
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Answer:

A. 0.0450

B. 4

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D. 37.68

E. 6Hz

F. -0.523

G. 1.5m/s

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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

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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

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ω = 2πf

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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.

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