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asambeis [7]
3 years ago
8

Why unit of force is derived unit? ​

Chemistry
1 answer:
Xelga [282]3 years ago
5 0

Answer:

Because it is the product of two more basic units, mass and acceleration. The calculation of force is as follows:

Force=mass*acceleration

Mass is a base unit, acceleration is a derived unit calculated as a function of length and time which are both base units.

Any unit definition that is a function of more basic units is considered a derived unit.

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What is the potential energy of the ball as it is half way through the fall, 20 meters high?
KonstantinChe [14]

98 \times mass \text { joule } is the potential energy of the ball as it is half way through the fall, 20 meters high

<u>Explanation:</u>

Given data:

Height of the fall = 20 m

Given that the body is half-way through the fall, it is at above the ground 10 m

          \frac{1}{2} \times 20=10 \mathrm{m}

We need to find its potential energy (P.E)

Energy due to the body’s position is referred as potential energy. It means the energy when body is at rest. It can be expressed as below,

         \text { Potential energy }=m \times g \times h

Where

m – The body’s mass

g - Acceleration due to gravity  \left(9.8 m / s^{2}\right)

h - Height of the body

By substituting the given values, we get

           Potential energy =m \times 9.8 \times 10=98 \times m\ joule

Since the mass is not provided, just kept it.

6 0
2 years ago
The area in which certain types of plants or animals can be found living in close proximity to each other is called a_________
posledela
I think the answer to this is A
5 0
3 years ago
Read 2 more answers
What are the difficulties encountered in precipitation titration
Mumz [18]

One difficulty encountered in precipitation titration is that it is hard to determine the exact end point of its reaction.

Precipitation titration is a titration in which a  reaction  occurs from the  analyte and titrant  to form an insoluble precipitate.

With the use of silver for the titrations, (argentometric) we are able to develop many precipitation reactions.  

The  precipitation titrimetry  methods with the use of argentometry includes  

• Mohr’s Method

• Fajan’s Method

• Volhard’s Method

Difficulties encountered in precipitation titration includes

  • Getting the exact end point is hard.

  • it is a very slow titration method.

  • it includes periods of filtration and cooling thereby reducing the reactions available for this type of titration.

See more on Precipitation: brainly.com/question/20628792

8 0
2 years ago
The Half-Life of Pa-234 is 6.75 hours. How much (what fraction) of a sample of this isotope remains after 20.25 hours?
Grace [21]
So in one hour half the amount remains (that's what half life means). In two hours 1/4 (or half of half) would remain and in three hours 1/8 would remain.
So the answer is 1/8
6 0
2 years ago
A compound with chemical formula na2cx3 has formula mass 106 amu .. what is the atomic mass of element x
maria [59]

The element "X" is "O" (oxygen).

<h3>Calculation:</h3>

Given,

Chemical formula = Na₂CX₃

Formula mass = 106 amu

Molar mass of Na = 23 amu

Molar mass of C = 12 amu

To find,

Element X =?

We will equate the equation as follows,

2(23) + 12 + 3(y) = 106

46 + 12 + 3y =106

58 + 3y = 106

3y = 106 - 58

3y = 48

y = 48/3

y = 16

We know that Oxygen has molecular mass of 16. Therefore the element "X" is "O".

Learn more about molar mass here:

brainly.com/question/22997914

#SPJ4

5 0
1 year ago
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