Answer: The computer is one of the greatest inventions of human history. The computer has had effect on the lives of each and ever individual. The computer has lead to the birth of digital global world with all the transaction and governance systems being digitalised.
Explanation:
Computer has itself made into a big profession with many innovations still being carried out. Due to internet technologies people have become connected more and more and are able to know the details of any news happening anywhere. It has also increased the knowledge level of people in all the developed and developing nations.
It has increased the ease of everyday life.
Answer:
True
Explanation:
The hexadecimal numbering is the most used numeric system for international operations in a computer, in our daily life we use the decimal system but for the CPU use the byte or octet as a basic unit of memory, we need more than 10 digits, and the hexadecimal system has 16, in addition, the binary system is hard to understand.
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Answer:</h2>
10
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Explanation:</h2>
Specific gravity (also called relative density) is the ratio of the density of an object (or substance) to the density of a reference substance (mostly water). It has no unit and is given by the following;
Specific gravity = 
Specific gravity is also given by the ratio of the weight of the object in air to the loss of weight of the object in water. i.e
Specific gravity =
--------------(* * *)
In this case;
i. The object is the solid which has a weight of 20gf in air.
ii. The loss of weight of the solid in water is the difference between the weight in air (20gf) and the weight in water (18gf).
Therefore the loss of weight is
20gf - 18gf = 2gf
Now substitute these values from (i) and (ii) into equation (* * *) as follows;
Specific gravity = 
Specific gravity = 10
Therefore the specific gravity of the solid is 10
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