Answer:
Thickness of each page will be 0.00785 cm
So option (E) will be correct answer
Explanation:
We have given that last page on the book is numbered as 764
So total number of pages in the book 
( as each page is numbered in both side )
Total thickness of the book = 3 cm
We have to found the thickness of the each page
So thickness of each page will be 
So option (E) is correct option
Answer:
57.6
Explanation:
"Significant figures" refer to figures that have an actual contribution to a <em>number's value.</em>
They refer to all digits<u> except those with</u><em><u> </u></em><em><u>"leading zero,"</u></em> which means having a zero digit before a specific number. For example, in the number 0234, the significant figures are<em> 234. </em>
The rule for adding and subtracting significant figures is to <em>round off the answer to the least number of decimal places</em>. However, when it comes to multiplying and dividing significant figures, you have<em> round off the answer to the least number of significant digits.</em>
<u>Let's solve.</u>
21.4
+15
17.17
<u> 4.003</u>
57.573
Let's now round off to the<em> least number of decimal places</em>, which is the <em>tenths. </em>Since 0.5 is followed by a number greater than 5, we have to round it off to 6. Therefore, the answer is: 57.6
Answer:
Sin(60°)=
Explanation:
Assuming the given angles are in degrees
We know that Sin(A-B)=SinACosB-CosASinB
Here A=100° and B=40°
Answer:
we use : photometer to measure light intensity
:Anemometer to measure wind intensity
:Hygrometer to measure relative humidity
<h3><u>Answer;</u></h3>
- Amount of time the two substances are in contact
- Area in contact between the two substances
- Specific heat of the material that makes up the substances
<h3><u>Explanation</u>;</h3>
- The change in temperature of a substance is caused by heat energy. <em><u>The change in temperature will depend on factors such as mass of the substance, the type of material it is made from, the time taken , specific heat of the material that makes the substance, and also the area of contact</u></em>.
- <u>The amount of time</u> the two substances are in contact affect the change in temperature such that if the two bodies are in contact for a longer time then a bigger change in temperature will be observed.
- <u>Specific heat capacity </u>also determines the change in temperature that will be observed, such that a substance with a bigger specific heat capacity will record a small change in temperature.
