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solong [7]
3 years ago
8

Which one of the following is NOT true about energy conversion devices? Group of answer choices Total Energy Input = Energy Diss

ipated to the surroundings Total Energy Input = Total Energy Output Total Energy Input = Useful Energy Output + Energy Dissipated to the surroundings Total Energy Input = Total Energy Output / Efficiency
Computers and Technology
1 answer:
ICE Princess25 [194]3 years ago
6 0

Answer:

Total Energy Input = Total Energy Output / Efficiency

Explanation:

The expression written above is not true about the energy conversion devices.The energy conversion devices convert energy from one form to another for of energy for example :- take a light bulb it converts electric energy to heat and light.There is no efficiency involved in the energy conversion devices.

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Oliga [24]
Verifying, The answer above me is correct
6 0
2 years ago
Use the following cell phone airport data speeds​ (Mbps) from a particular network. Find P10. 0.1 0.1 0.3 0.3 0.3 0.4 0.4 0.4 0.
sasho [114]

Answer:

P_{10} =0.1

Explanation:

Given

0.1, 0.1, 0.3, 0.3, 0.3, 0.4, 0.4, 0.4, 0.6, 0.7, 0.7, 0.7, 0.8, 0.8

Required

Determine P_{10}

P_{10} implies 10th percentile and this is calculated as thus

P_{10} = \frac{10(n+1)}{100}

Where n is the number of data; n = 14

P_{10} = \frac{10(n+1)}{100}

Substitute 14 for n

P_{10} = \frac{10(14+1)}{100}

P_{10} = \frac{10(15)}{100}

Open the bracket

P_{10} = \frac{10 * 15}{100}

P_{10} = \frac{150}{100}

P_{10} = 1.5th\ item

This means that the 1.5th item is P_{10}

And this falls between the 1st and 2nd item and is calculated as thus;

P_{10} = 1.5th\ item

Express 1.5 as 1 + 0.5

P_{10} = (1 +0.5)\ th\ item

P_{10} = 1^{st}\ item +0.5(2^{nd} - 1^{st}) item

From the given data; 1st\ item = 0.1 and 2nd\ item = 0.1

P_{10} = 1^{st}\ item +0.5(2^{nd} - 1^{st}) item becomes

P_{10} =0.1 +0.5(0.1 - 0.1)

P_{10} =0.1 +0.5(0)

P_{10} =0.1 +0

P_{10} =0.1

3 0
3 years ago
Which relation is created with the primary key associated with the relationship or associative entity, plus any non-key attribut
konstantin123 [22]

Answer:

- Transform binary or unary M:N relationship or associative entity with its own key.

Explanation:

Transform binary relation is described as the method through which a decimal can easily be converted into binary while the unary relationship is described as a relationship in which both the two participants occurs from the same entity.

In the given case, 'transform binary or unary M:N relationship' can be created using 'the primary key linked with the relationship plus any non-key aspects of the relationship and the primary keys of the related entities' as it displays the existence of a relationship between the occurrences of a similar set of the entity i.e. associative entity here.

5 0
3 years ago
Write a program that asks a user to enter a date in month day year format (for example 10 12 2016) and displays the day of the w
AleksAgata [21]

Answer and Explanation:

Using javascript:

function dayof_theweek(){

var TodayDate = window. prompt("enter today's date in the format 'year, month, day' ");

var Datenow=new date(TodayDate);

var Dayofweek=Datenow.getday();

var Days=["monday","Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday"];

if(Dayofweek==indexOf(Days[Dayofweek]))

{

document.createTextnode(Days[Dayofweek]);

}

}

The program above uses a date object which uses the method getday to get the day of the week(get day returns an integer from 0 to 6).we then use a comparison operator == to test the condition that returned value Dayoftheweek is same with the index of the array Days and then print to a html document. The program may need improvements such as the fact that errors may arise when proper input isn't given, and therefore must be handled.

8 0
2 years ago
If Windows does not automatically detect a newly added device, to get the device recognized and the drivers installed, you shoul
Artyom0805 [142]

Answer:

Update the device driver

Explanation:

Devices drivers are softwares used to link a component of the computer to the operating system functionality.

It normally comes with the installed operating system, but most plug and play devices , come with a little built-in OS that runs once it is plugged in.

If a device is not recognized, update the driver software and restart the system.

3 0
3 years ago
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