When are objects in thermal equilibrium? *

1 answer:

7 0

Thermal equilibrium is achieved when two objects or systems reach the same temperature and cease to exchange energy through heat. When two objects are placed together, the object with more heat energy will lose that energy to the object with less heat energy.

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A __ allows you to determine the position of an object <br><br>this is science plz helpp

Alex_Xolod [135]

The correct answer is C

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A machinist with normal vision has a near point at 25 cm. The machinist wears eyeglasses in order to do close work. The power of

Alik [6]

Answer:

17.4 cm

Explanation:

Power of lens = +1.75 diopters

Focal length of lens

$f=\frac{100}{1.75}=\frac{400}{7}$

This is a convex lens as focal the diopter given is positive which makes the focal length positive. Image distance will be negative.

v = -25

$\frac{1}{v}-\frac{1}{u}=\frac{1}{f}\\\Rightarrow \frac{1}{-25}-\frac{1}{u}=\frac{1}{\frac{400}{7}}\\\Rightarrow -\frac{1}{u}=\frac{7}{400}+\frac{1}{25}\\\Rightarrow \frac{1}{u}=-\frac{7}{400}-\frac{1}{25}\\\Rightarrow \frac{1}{u}=-0.0575\\\Rightarrow u=-17.4\ cm$

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A scientist is using a lithium ion battery to power her laptop.

Scrat [10]

The statement about the battery which is correct is; a new substance is formed as the battery is used.

Lithium ion batteries have become part of most modern devices such as cell phone, laptop computers and other digital devices.

It shorter time of recharge and good battery life has continued to make it a top choice in the electronics industry.

The equation that describes the chemistry of lithium ion battery is;

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The reaction goes towards right hand side when the battery is in use and towards the left hand side when that battery is recharging.

Hence, from the equation, we can see that a new substance, LiCoO2 is formed when the battery is in use.

Learn more: brainly.com/question/22885959

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I need SO much help please!!!!!!!!~!

bulgar [2K]

Hi,

I've found a link that should assist you or answer your question.
http://click.dji.com/ANbvbbP7bwUWtSACp6U_?pm=link&as=0004

Have a nice day!

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What is matter? explain and give example

kotykmax [81]

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