Answer:
The correct answer is b.
Step-by-step explanation:
The wave equation is given generally as:
c(x, t) = Acos(kx - wt)
Where A = amplitude
k = wave number
w = angular frequency.
x = horizontal distance moves by the wave.
t = time
The options show to us that the wave depends only on t and not (x, t).
Hence, the wave equation becomes:
c(t) = Acos(wt)
Given that:
A = 5 V
f = 1 * 10⁶ Hz
Angular Frequency, w, is given as:
w = 2πf
w = 2 * π * 1 * 10⁶ Hz
w = 2π(1 * 10⁶)
The wave equation becomes:
c(t) = 5cos(2*π*1*10⁶)
The correct answer is b.
Answer: The second to last option I think
Step-by-step explanation:
Given situation : 0.5 pound of peaches selling for 0.80 dollars/ pound
0.7 pound of oranges selling for 0.90 dollars / pound.
Solution
Given number 1 : Peaches
=> 0.5 pound = meaning, ½ pound is available, And 1 pound of it costs 0.80 dollars.
Let’s solve:
=> 0.80 dollars * 0.5
=> 0.40 dollars – the price of the peaches.
Given number 2 : Oranges
=> 0.7 pounds of oranges, meaning less than 1 pound. And 1 pound costs 0.90 dollars
Let’s solve to get the anwer
=> 0.7 * .90
=> 0.63 dollars – the costs of 0.7 pounds of oranges,
Step-by-step explanation:
The answer will be 380 inches as of what I have done
2 miles is equivalent to 126720 inches.
