What are functions explain with an example?
Space & NavigationWe could define a function where the domain X is again the set of people but the codomain is a set of numbers. For example, let the codomain Y be the set of whole numbers and define the function c so that for any person x, the function output c(x) is the number of children
What is complement of number?
Space & NavigationWhat is complement of numbers? The result of inverting the bits in a number is called the one’s complement of that number. For example, the one’s complement of 0110111 is 1001000. It is called the one’s complement because when you add the numbers together, you get all 1’s. For example, 0110111 + 1001000 = 1111111.
How long does the protostar stage last for a star like our sun?
Space & Navigationbetween 100,000 and 10 million yearsbetween 100,000 and 10 million years depending on the size of the star being formed. How long does it take for a protostar to become a star? Collapse into a star like our Sun takes about 50 million years. The collapse of a very high mass protostar might take only
What is local attraction in land surveying?
Space & NavigationLocal attraction & Compass Surveying Local attraction is the phenomenon by which the magnetic needle is constantly prevented to point towards the magnetic north at a place. What is local attraction in survey? While compass surveying, the magnetic needle is sometimes disturbed from its normal position under the influence of external attractive forces. Such a
Is an empty set a proper subset of every set?
Space & NavigationThe empty set is a proper subset of every set except for the empty set. Why empty set is not a proper subset? Any set is a improper subset of itself. The empty set (not the “null” set) is then an improper subset of itself (as it is equal to itself) but a proper subset
Does a sundial work all year round?
Space & NavigationThe accuracy of sundials does change during the year (when compared with the time shown by an accurate clock). For this discussion, imagine a “perfect” sundial that shows the time accurately, according to the Sun’s position in the sky. Do sundials work in all seasons? If the shadow-casting gnomon is aligned with the celestial poles,