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3 years ago

What are storage devices

Computers and Technology

2 answers:

devlian [24]3 years ago

6 0

Answer:

=>. storage devices are those devices that is used to store some data in it

It is very important device that gives a lot of benefits in our daily lives

we can also carry our data from one place to another

Alexxx [7]3 years ago

3 0

Well they are pretty much what store files and such on your computer or other device some different types are ssd and hdd

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A sinewave has a period (duration of one cycle) of 645 μs. What is the corresponding frequency of this sinewave, in kHz, express

irga5000 [103]

The corresponding frequency of this sinewave, in kHz, expressed to 3 significant figures is: 155 kHz.

Given the following data:

Period = 645 μs

Note: μs represents microseconds.

Conversion:

1 μs = $1$ × $10^{-6}$ seconds

645 μs = $645$ × $10^{-6}$ seconds

To find corresponding frequency of this sinewave, in kHz;

Mathematically, the frequency of a waveform is calculated by using the formula;

$Frequency = \frac{1}{Period}$

Substituting the value into the formula, we have;

$Frequency = \frac{1}{645\; * \;10^{-6}}$

Frequency = 1550.39 Hz

Next, we would convert the value of frequency in hertz (Hz) to Kilohertz (kHz);

Conversion:

1 hertz = 0.001 kilohertz

1550.3876 hertz = X kilohertz

Cross-multiplying, we have;

X = $0.001$ × $1550.39$

X = 155039 kHz

To 3 significant figures;

Frequency = 155 kHz

Find more information: brainly.com/question/23460034

5 0

3 years ago

When is the following expression true? (2 points)

ipn [44]

Answer:

1) If and only if a and b have different values

Explanation:

Given

Expression: !(!a || b) || (!a && b)

Required

When is it true?

The expression is true when the values a and b are different and the proof is as follows.

(1) Assume that: a = true and b = false

!(!a || b) || (!a && b)

= !(!true || false) || (!true && false)

!true = false, so the expression becomes:

= !(false|| false) || (false && false)

In boolean, false|| false = false and false && false = false. So, we have:

= !(false) || (false)

!(false) = true, so, the expression becomes:

= true || (false)

Lastly, true || false = true

(2) Assume that: a = false and b = true

!(!a || b) || (!a && b)

= !(!false|| true) || (!false && true)

!false = true, so the expression becomes:

= !(true|| true) || (true && true)

In boolean, true|| true = true and true && true = true. So, we have:

= !(true) || (true)

!(true) = false, so, the expression becomes:

= false|| true

Lastly, false || true = true

This expression is false if a and b have the same value

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3 years ago

WILLL PAYYYYYYYY

Nonamiya [84]

I believe it would be Use the reports wizard to create a report.

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4 years ago

Help with prg 140 class it is really giving me a hard time understanding it

Snowcat [4.5K]

Answer:

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Explanation:

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3 years ago

Discussed the economic and ideological cause of Americans, French and Chinese revolution

alexgriva [62]

Answer:

The social, political, and economic causes of the American Revolution inevitably helped shape the country we live in today. A social cause that occurred was the disagreement between America and Britain and how poorly they were treated. A political cause that occurred was the implantation of legislatures on the colonies

Explanation:

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3 years ago

What are storage devices ​

What are storage devices