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.
Video and Sound are the 2 most basic categories of film
Answer:
Because it takes precision to a lot of things in tech and Eng. We need to measure all kinds of things, like wood, metal/etc. for computers and things that we use everyday, Because our world goes around being precise about things that we need everyday, like tables and things.
Explanation:
It should be noted that the hardware component that keeps data and information when the device is not powered is called a storage device.
This device can be permanent or temporary storage device.
<h3>What is a storage device?</h3>
Storage device can be regarded as the device that store data.
There are different storage devices for the computer system, they includes;
- Optical Storage Devices.
- External HDDs
- Random Access Memory
- Flash memory devices.
- Floppy Disks.
Learn more about storage device at ;
brainly.com/question/21283135
Answer:
A fixed expense is an expense that has a constant total expense value (the total amount of the fixed expense) that remains the same (does not change) when there is a change in the number being managed, manufactured, or sold
Examples of fixed expense includes; depreciation of assets, salaries of workers, payment for rental lease, and some utility payment, such as road users toll fees payment at a toll gate
Explanation:
