Why Police logo color is in red and blue ??​

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Answers 2

Answer:

police logo colour is red and blue because of blue colour indicates peace and red colour indicates justice

Answer:

The choice of red probably resulted from the fact that the color red is associated with stop and warnings in the U.S. Over time, police cars and other emergency vehicles began to use flashing emergency lights. ... Using a combination of flashing red and blue lights thus helps to alert drivers regardless of the time of day.

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सच्चा साथी कोन होता है ?​

Answer:

[tex] {\huge {\frak {\underline{\red{answer}}}}}[/tex]

अगर आप स्वयं के साथ हैं तो किसी साथी की जरुरत नहीं है। इंसान सामाजिक प्राणी है उसको साथ की आवश्यकता पडती ही है। जब आप हर तरफ से नाउम्मीद हो जाएँ और कोई आपका साथ नहीं दे रहा हो, उस वक्त जो आपके काम आए वो ही आपका सच्चा साथी है।

Answer:

[tex] \\ [/tex]

Explanation:

इंसान सामाजिक प्राणी है उसको साथ की आवश्यकता पडती ही है। जब आप हर तरफ से नाउम्मीद हो जाएँ और कोई आपका साथ नहीं दे रहा हो, उस वक्त जो आपके काम आए वो ही आपका सच्चा साथी है।

if A is a non-singular matrix of odd order prove that |adj A| is positive​

Answer:

So Here's your Soln... Thankyou

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The specific heat capacity of water is 4200 J/kg K. What is the change In the internal energy of 5 kg of water when it is heated from 20°G to 80°C?​

Mass = 5kg

Specific heat = 4200jkg

initial temperature = 20°C

Final temperature = 80°C

That is final - initial temperature =(T1 ) - (T2)

= 80 - 20 = 60

Q = mS∆T

Q = 5×4200×60 = 1,26,000kJ

Answer:

  • Change in internal energy is 1260000 KJ.

Explanation:

Topic :

  • Thermodynamics

According to the Question

It is given that,

  • Specific heat ,s = 4200 J/KgK
  • Mass of water ,m = 5kg
  • Initial temperature , Ti = 20°C
  • Final temperature ,Tf = 80°C

we have to calculate the change in internal energy .

Firstly we change the unit here

Conversion of Unit :-

→ Ti = 20+ 273 = 293 K

→ Tf = 80 + 273 = 353K

Now, calculating the change in temperature

  • ∆T = Tf - Ti

by putting the value we get

→ ∆T = 353K - 293K

→ ∆T = 60 K

From the result we conclude that "heat is absorbed by water "

Now, calculating the change in internal energy

  • Q = ms∆T

by putting the value we get

→ Q = 5 × 4200 × 60

→ Q = 4200 × 300

→ Q = 1260000 KJ

  • Hence, the change in internal energy is 1260000 KJ .
What will be the correct answer for this ?Teak is mainly found in which _______ type of forest ?​
question img

Answer:

salvador

Explanation:

Mark me as brainliest please

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