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ratelena [41]
3 years ago
10

What is the frequency, in units of kiloHertz, of an AC waveform that has a period of 12 microseconds?

Physics
1 answer:
Alik [6]3 years ago
3 0

Answer:

83.3 kHz

Explanation:

The frequency of a waveform is equal to the reciprocal of its period:

f=\frac{1}{T}

where

f is the frequency

T is the period

In this problem, we have

T=12 \mu s=12\cdot 10^{-6} s

so, the frequency of the waveform is

f=\frac{1}{12 \cdot 10^{-6} s}=8.33\cdot 10^4 Hz

And by converting into kiloHertz,

f=8.33\cdot 10^4 Hz=83.3 kHz

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Average speed =

(total distance)/(total time)

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Average speed = 37.8 km/hr

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3 years ago
A window air conditioner that consumes 1.4 kW of electricity when running and has a coefficient of performance of 3 is placed in
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Answer:

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Anger is to angry as fire is to what
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A child, hunting for his favorite wooden horse, is running on the ground around the edge of a stationary merry-go-round. The ang
olga55 [171]

Answer:

9.22 s

Explanation:

One-quarter of a turn away is 1/4 of 2π, or π/2 which is approximately 1.57 rad

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0.0068t^2 - 0.233t + 1.57 = 0

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t= \frac{0.233\pm \sqrt{(-0.233)^2 - 4*(0.0068)*(1.57)}}{2*(0.0068)}

t= \frac{0.233\pm0.11}{0.0136}

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6 0
3 years ago
Differentiate scalar &amp; vector quantity?
Keith_Richards [23]
\textbf{Hello Friend}


Scalar Quantity :-

→ These are the quantities with magnitude only . These quantities doesn't have to be mentioned with direction

eg.)=> Mass , Temprature .



Vector Quantity :-

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eg.)=> Force , Displacement






_______________________________



Hope It Helps You. ☺
5 0
3 years ago
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