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A closed door constitutes a physical barrier to the movement of air; an open door permits the movement of air.

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What energy transfer is door was opened?

When a door is opened, mechanical energy is transferred from the person opening the door to the door itself. The person exerts a force to overcome the resistance of the door, causing it to move and change its position. This energy transfer is an example of mechanical work being done.


The sound made by a door is called?

The sound made by a door is called a squeak, creak, or slam, depending on the noise produced when the door is opened or closed.


What might happen if i opened a door in a world without friction?

If you opened a door in a world without friction, the door would likely continue moving forever in the direction it was opened without slowing down or stopping unless acted upon by an external force. The lack of friction would prevent any resistance to its motion, allowing it to move indefinitely.


How do door locks work?

Door locks work by using a mechanism that secures the door in place, preventing it from being opened without the correct key or combination. There are different types of door locks, including pin tumbler locks that use pins of varying lengths to prevent the lock from opening without the correct key, and electronic locks that use digital codes or biometric information to grant access. When the correct key or code is inserted, it aligns the pins or activates the mechanism to allow the door to be opened.


Why is a door called a door?

The word "door" comes from the Old English word "duru," which means an opening or entrance to a building. Over time, the term evolved to specifically refer to a hinged or sliding barrier that can be opened or closed to allow entry or exit.

Related Questions

What is passive voice of who opened the door?

By whom was the door opened?


What is the concept of door draft about?

Door draft is a term used to describe drafts that pass through or by a door. It, by itself, is not a process. Often, one hears door draft can be prevented with a stopper or blocker.


How can you use a word opened in a sentence?

Let's see what happened when he opened that door... The dog opened the doggie door slowly, at first.


Where can one purchase door draft stoppers?

Door Draft Stoppers can be purchased from home improvement and hardware stores. Some of these stores are Home Depot and Lowes. Door draft stoppers can also be purchased from Amazon.


Who was Commodore Perry in the War of 1812?

He opened the door to trading with Japan He opened the door to trading with Japan


How do you know it was Marcia that opened the Fire Door in the past?

You don't know it was Marcia that opened the Fire Door in the past.


How is a door like a valve?

A door and a valve can be opened and closed.


Was it you that opened the Fire Door in the past?

no.


When the narrator opened the door the first time in The Raven who was there?

When the narrator opened the door the first time in "The Raven," there was no one there. The narrator was puzzled by the empty space outside his door.


When you opened the door of the haunted house?

when i opened the door of a haunted house i felt a really big breeze just walk out the door and my intestines felt really weird........


What is the mechanism of a door that splits in half when opened?

A door that splits in half when opened typically operates on a hinge mechanism that allows each half of the door to swing outward independently. This type of door is known as a "barn door" or "dutch door."


How does the door light switch function in controlling the illumination of a room when the door is opened or closed?

The door light switch is a sensor that detects when the door is opened or closed. When the door is opened, the switch triggers the light to turn on, illuminating the room. When the door is closed, the switch turns off the light, saving energy and controlling the room's illumination.