240 = 0+1/2 (-9.8t
240 = -4.9t
<span>240/-4.9 = t</span><span>
</span>49.0 = t
t= 7.0s
The answer for the following problem is mentioned below.
- <u><em>Therefore the time period is 0.02 seconds.</em></u>
Explanation:
Frequency:
The number of waves that pass a fixed place in a given amount of time. (or)
The number of waves that pas by per second.
The SI unit of the frequency is Hertz(Hz).
Time period:
The time taken for one complete cycle of vibration to pass a given point.
The SI unit of time period is seconds. (s)
Given:
Frequency (f) = 39.5 Hz
To calculate:
Time period (T)
We know;
According to the problem;
From the problem;
<u>f = </u>
<u></u>
Where;
f represents the frequency
T represents the time period
f = 
f = 0.02 seconds
<u><em>Therefore the time period is 0.02 seconds.</em></u>
.
a phenomenon whereby the moon appears bluish owing to smoke or dust particles in the atmosphere
Answer:
I'm pretty sure it's all of them i'm not completely sure though hope it helps anyways! :)