Answer:
3 Cycles
Explanation:
Every cycle on a cosine function are marked by the completion of 5 key points when moving along the x-axis:
(5, 0, -5, 0, 5)
This cycle has a frequency of 2, occurring once every second, thus answering our question easily.
Answer:
The value of the power is
Explanation:
From the question we are told that
The power rating
The frequency is
The frequency at which the sound intensity decreases
The decrease in intensity is by
Generally the initial intensity of the speaker is mathematically represented as
Generally the intensity of the speaker after it has been decreased is
So
=>
=>
=>
=>
=>
taking atilog of both sides
=>
=>
=>
All we need to do is divide the momentum and weight to find the velocity:
v = m / w
Solve using the values we are given.
v = 952/68 = 14 m/s
Best of Luck!
Answer:
3.46 x 10^(-13) Joules
Explanation:
The electrical work needed to assemble the system of three charges can be calculated by the following formula:
Where the variables are draw in teh attached image.
In an equilateral triangle:
r_12 = r_13 = r_23 = r
And all the charges are the same, therefore:
q1 = q2 = q3 = q
Replacing these values in the W formula:
Now let's evaluate this formula with
r =2.00 * 10^-15 m
q = 1.6 * 10^-19 C
tHe AnSwEr iS B
for real tho the answer is b hope this helps.