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otez555 [7]
2 years ago
14

Uses of hydrometer in points​

Physics
1 answer:
Arisa [49]2 years ago
7 0

Answer:

A hydrometer is an instrument used to determine specific gravity. It operates based on the Archimedes principle that a solid body displaces its own weight within a liquid in which it floats. Hydrometers can be divided into two general classes: liquids heavier than water and liquids lighter than water

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In regards to bacteria, which is true:
drek231 [11]

i think the options maybe will be between c and d

but then again if it is super hot or super cold maybe bacteria wont grow but then im sry im not really sure about the answer. hope this helps

7 0
3 years ago
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What happens too baking soda when you heat it up?
Fantom [35]
Salutations!

What happens to baking soda when you heat it up!

When you heat up baking soda, it loses carbon dioxide which tends to crest bubbles. This is what makes it quite light and fluffy.

Hope I helped :D
4 0
3 years ago
The theory of continental drift proposes that the Earth's continents may have once been united as a supercontinent but have drif
JulijaS [17]

Answer:

Alfred Wegener proposed that the continents were once united into a single supercontinent named Pangaea, meaning all earth in ancient Greek. He suggested that Pangaea broke up long ago and that the continents then moved to their current positions. He called his hypothesis continental drift.

Explanation:

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6 0
3 years ago
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How can to sticks quickly start a fire​
LekaFEV [45]

Answer:

The closest thing to "rub bing two sticks together" is the hand-drill. You will need a fireboard (a small cedar board is good) and a thin, straight stick.

Explanation:

8 0
3 years ago
A simple pendulum consists of a 1.00-kg bob on a string 1.00 m long. During a time interval of 25.0 s , the maximum angle this p
yuradex [85]

Answer:

The time constant is 76.92 sec.

Explanation:

Given that,

Mass of bob = 1.00 kg

String length=1.00 m

Time = 25.0 s

Suppose we need to calculate the numerical value of the time constant τ.

We need to calculate the numerical value of the time constant τ

Using formula of time constant

A=A_{0}e^{\dfrac{-t}{2\tau}}

Put the value into the formula

5.10=6.00e^{\dfrac{-25.0}{2\times\tau}}

e^{\dfrac{-25}{2\times\tau}}=\dfrac{5.10}{6.00}

e^{\dfrac{-25}{2\times\tau}}=0.85

\dfrac{25}{2\tau}=0.1625

\dfrac{1}{\tau}=\dfrac{0.1625\times2}{25}

\dfrac{1}{\tau}=0.013

\tau=\dfrac{1}{0.013}

\tau=76.92\ sec

Hence, The time constant is 76.92 sec.

7 0
3 years ago
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