If long sight means farsighted, then here's your answer:
Farsightedness is when the lens has difficulty focusing on nearby objects. Sufferers must squint to see the nearby objects. Reading, writing, and drawing for longer periods of time can cause eyestrain and headache.
Being farsighted can be corrected with prescription glasses or contact lenses or surgery.
They both show the constructive power of erosion.
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Explanation:
Molecular mass is defined as the sum of atomic masses of all the atoms present in a given compound.
For example, molecular mass of is as follows.
=
=
= (12 + 4) g/mol
= 16 g/mol
Hence, the molecular mass of is 16 g/mol.
Therefore, we can conclude that the sum of the atomic masses of all the atoms in a formula for a covalent compound is the molecular mass.
Answer:
This graph shows the distance moved by the train with respect to time
Between t = 3 to t = 5 the train is at rest
Since this graph shows the distance covered by the train so it is a scalar quantity
Explanation:
Here from the graph we can see the distance covered by the train with respect to time
So here from the slope of this graph we can find the speed of the train
Also from t = 3 to t = 5 we can see that slope of the graph is zero
So here n this time interval there is no motion or it is at rest
Now since we know that this is distance vs time graph so it is a scalar quantity showing in this graph
Answer: x = 73
Explanation:
Firstly, arithmetic mean is the average of the set of numbers given in question while median is the number that is placed at the middle of sets of distribution after been arranged in either ascending or descending order.
According to the question the mean will give us sum total of the number divided by the total numbers given i.e
63 + 67 + x + 80 + 82/5
Since the numbers are already listed in increasing order, median will be 'x'
Since the arithmetic mean is equal to the median according to the question, we then have;
63 + 67 + x + 80 + 82/5 = x
Cross multiplying we have;
63 + 67 + x + 80 + 82 = 5x
292+x = 5x
292 = 5x - x
292 = 4x
x = 292/4
x = 73