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maria [59]
3 years ago
12

Which type of ladder has flat steps, hinged back, self-supporting, and non-adjustable?

Physics
1 answer:
il63 [147K]3 years ago
5 0

Answer:  Step Ladders

In general ladders are with inclined or vertical set of steps or rungs between two upright lengths of metal or wood. Ladders used for climbing up and down.

<u>Step ladders :</u>

It is a self supporting portable ladder, most commonly used in industries.  Self-supporting means it does not need any support to lean.  So this ladder can be used any where in the rooms. For example middle of the room  where support is not available. Also this ladder is non-adjustable flat steps and hinged back.  

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Problem:
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I do have a couple ideas and tips that may help you win. I don’t know how the guidelines are set up so if the ideas won’t be helpful I apologize.

First off put some ice cubes in the container then sprinkle salt on them, The reaction will create an effect and be super cold.


Another idea would be to get some dry ice if you able to, This will freeze it solid within seconds.


The last idea combines the the first. Take a bowl and fill it with with water and ice (Make sure the bowl is insulated) add a small handful of salt into the bowl, Put your drink into the cooler and before shutting stir then well then close and wait for the amount of time left, Your should have a cold water bottle.


I hoped this helped you out and I hope you also win the contest.
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