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Fill in the blanks bellow from the following option.. The force of attraction among molecules is called---------------- 1. diffusion 2. surface tension 3. cohesion 4.adhesion

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3cohesion

Posted on Oct 12, 2010

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What is solvation


Solvation, also sometimes called dissolution, is the process of attraction and association of molecules of a solvent with molecules or ions of a solute. As ions dissolve in a solvent they spread out and become surrounded by solvent molecules.

Solvation - Wikipedia

https://en.wikipedia.org/wiki/Solvation https://www.google.co.uk/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=What+is+solvation

Nov 29, 2016 | Office Equipment & Supplies

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Understanding how laser printer works


Printing technology on organic photoconductor drum (OPC Drum) is summarized by the following 6 steps:http://i.fixya.netmabroukmedal_18.jpg
STEP1:The OPC drum must be charged with a negative charge, (electrons)
the primery charge roller apply a hight voltage to the drum.Note:if this step missing, (poor contact in the high voltage) the page will be printed all black) the charge roller is located on the drum.
http://i.fixya.netmabroukmedal_19.jpg


STEP2: The laser beam reach the drum surface to discharge the zone of text that will be printed on the paper. Note: if the laser beam don't reach the drum,( the interlock switch is not actuated when the front cover is closed) the image will not be formed on the drum. the laser unit is showing on this picture:

http://i.fixya.netmabroukmedal_20.jpg


STEP3:the developping cylinder prepare the toner to be taken by the drum, the surface that was touched by the laser beam are positive, they attract the toner by electrostatic force, the other zone push the toner because they have the same charge (both negative, coulomb law). the image will be formed on the drum surface.the developping roller is located on the cartridge.


STEP4:the transfer roller attract the image formed on the drum surface to the paper.Note: if the high voltage not reach the transfer roller, the paper comes out blank (poor contact), or if the transfert roller is dirty the quality of printing is bad. these is the picture of the transfert roller and the paper pickup roller :

http://i.fixya.netmabroukmedal_21.jpg


http://i.fixya.netmabroukmedal_23.jpg


STEP5:the image was transfered to the paper, and must be fixed by temperature, and pressure. the fixing unit or fusing unit is composed of :the hot roller and a pressure roller.
http://i.fixya.netmabroukmedal_26.jpg


http://i.fixya.netmabroukmedal_25.jpg
http://i.fixya.netmabroukmedal_27.jpg

STEP 6: the clean blade or cleaning roller remove the residuel toner on the drum surface, to prepare for a new print operation. Note :if the cleaning step was not performed the page comes out with the trace of the last print page.

on Dec 07, 2010 | Epson EPL 5900L Laser Printer

1 Answer

How dose gravity work


Gravity is a mutual attractive force between any 2 bodies (masses). It is classified as a weak force (by comparison with molecular forces) but is thought to be unlimited in range.

It increase with the masses of the attracted bodies, but decreases with the square of distance, so that if you go twice as far from Earth, the effect of gravity on you is lessened by a factor of 4.

So this means that a huge fully loaded oil tanker is attracted to the wharf, which is attached to the Earth. Such forces usually can be ignored, but not when launching rockets for instance.

It is thought that a theoretical particle called the Graviton influences gravity by interacting with something in Einstein's Theories called a stress-energy tensor. The trouble is that the Graviton has not been detected, so other theories about what makes gravity are possible.

Nov 06, 2013 | Cameras

1 Answer

Why does liquid expand when it freezes?


Water is made of up molecules that are very close to one another. They are forced together because of something called a bond. As water cools down, the molecules start to organize themselves into shapes that are commonly known as crystals. Since the crystals are not as close together as the molecules would be in liquid form, water takes up more space frozen.

Feb 18, 2013 | Liquid Fence Freeze Pruf Qt RTU

2 Answers

Y is the earth shaped like a sphere?


Because Gravity pulls equally in all directions. When the Earth was forming, it was entirely molten rock. And, since Gravity pulls equally in all directions, the Gravity of the Earth pulled the molten rock into a sphere.

Mar 22, 2011 | Computers & Internet

1 Answer

I purchased a Motorola KRZR2 from Ebay, and although it works great, it cannot connect to the AT&T web. AT&T told me that since I didn't buy it from them, they will not help me out. What are my...


Your WAP and MMS need to be set up.

1. Click your Menu
2. Click Settings
3. Click WEB ACCESS
4. Click Web Sessions
5. Click [New Entry]

Fill in the following fields: (some of the fields may already be setup)

Name: mMode
Homepage: http://home
Service Type 1: WAP
Gateway IP 1: 10.250.250.250
Port 1: 9201
Domain 1: <leave this blank>
Service Type 2: WAP
Gateway IP 2: 000.000.000.000
Port 2: 8080
Domain 2: <leave this blank>
DNS 1: 000.000.000.000
DNS 2: 000.000.000.000
Timeout: 5 minutes
CSD No. 1: <leave this blank>
User Name 1: <leave this blank>
Password 1: <leave this blank>
Speed (Bps) 1: 9600
Line Type 1: ISDN
CSD No. 2: <leave this blank>
User Name 2: <leave this blank>
Password 2: <leave this blank>
Speed (Bps) 2: 9600
Line Type 2: ISDN
GPRS APN: proxy
User Name: <leave this blank>
Password: <leave this blank>

Click Done
Click Menu
Select "Set Default"

Then...

1. Click your Menu
2. Click Settings
3. Click WEB ACCESS
4. Click Web Sessions
5. Click [New Entry]

Fill in the following fields: (some of the fields may already be setup)

Name: AT&T MMS
Homepage: http://mmsc.mobile.attwireless.net
Gateway IP: 10.250.250.55
Port 1: 8080
Domain 1: blank
Service Type 1: HTTP
Gateway IP 2: 000.000.000.000
Port 2: 0
Domain 2: blank
Service Type 2 WAP
DNS 1: 000.000.000.000
DNS 2: 000.000.000.000
Time out: 5 Minutes
CSD no 1: Blank
Username: 1: blank
Password 1: blank
Speed (Bps) 9600
Line Type 1: ISDN
CSD no 2: blank
User Name 2: blank
Password 2 blank
Speed (Bps) 2: 9600
Line Type 2: ISDN
GPRS APN: proxy
User Name:blank
Password:blank

Press the left soft key 4 times to return to the main menu.
Scroll to and select Messages.
Press Menu.
Scroll to and select Inbox Setup.
Scroll to and select MMS Message Setup.
Scroll to and select Server Info.
Scroll to "AT&T MMS", then press Menu.
Scroll to and select Edit.
Validate the following settings:
Service Name: AT&T MMS
Server Name: http://mmsc.mobile.attwireless.net
Web Session Name: AT&T MMS

Jan 14, 2010 | Motorola Mobility KRZR K1 Cellular Phone

1 Answer

WHAT DO I DO IF A CUSTOMER CAN ACCESS THE WEB BUT CANNOT SEND OR RECEIVE MMS ON HIS KRZR PHONE?


Check the MMS settings...
1. Click your Menu
2. Click Settings
3. Click WEB ACCESS
4. Click Web Sessions
5. Click [New Entry]

Fill in the following fields: (some of the fields may already be setup)

Name: AT&T MMS
Homepage: http://mmsc.mobile.attwireless.net
Gateway IP: 10.250.250.55
Port 1: 8080
Domain 1: blank
Service Type 1: HTTP
Gateway IP 2: 000.000.000.000
Port 2: 0
Domain 2: blank
Service Type 2 WAP
DNS 1: 000.000.000.000
DNS 2: 000.000.000.000
Time out: 5 Minutes
CSD no 1: Blank
Username: 1: blank
Password 1: blank
Speed (Bps) 9600
Line Type 1: ISDN
CSD no 2: blank
User Name 2: blank
Password 2 blank
Speed (Bps) 2: 9600
Line Type 2: ISDN
GPRS APN: proxy
User Name:blank
Password:blank

Press the left soft key 4 times to return to the main menu.
Scroll to and select Messages.
Press Menu.
Scroll to and select Inbox Setup.
Scroll to and select MMS Message Setup.
Scroll to and select Server Info.
Scroll to "AT&T MMS", then press Menu.
Scroll to and select Edit.
Validate the following settings:
Service Name: AT&T MMS
Server Name: http://mmsc.mobile.attwireless.net
Web Session Name: AT&T MMS

Oct 14, 2009 | Motorola Mobility KRZR K1 Cellular Phone

1 Answer

Duet washer leaking


If the leak started occurring after the bellow was replaced, and it's on the left hand side of the door, I suspect the bellow is not seated around the fill tube all the way. I have experienced this problem before. Check the fill tube where it comes in by the door. The rubber should be seated back far enough to allow the tube to fill into the tub without obstruction. It could be that the fill tube is forcing water BEHIND the bellow and leaking into the washer and on to the floor. To answer your question, "YES", replacing the bellow could have caused your leak.

Sep 29, 2007 | Whirlpool Duet GHW9150P Front Load Washer

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