on April 25, 2022
How are mares and highlands different?
Space and AstronomyThe Maria are mostly composed of dark basalts, which form from rapid cooling of molten rock from massive lava flows. The Highlands rocks are largely Anorthosite, which is a kind of igneous rock that forms when lava cools more slowly than in the case of basalts. What is the difference between mare and highlands? Maria
on April 25, 2022
How do you graphically display the probability distribution of a discrete random variable?
Space and AstronomyTo graph the probability distribution of a discrete random variable, construct a probability histogram. A continuous random variable X takes all values in a given interval of numbers. The probability distribution of a continuous random variable is shown by a density curve. What is the graph of probability distribution of discrete random variable? The probability
on April 25, 2022
What are functions explain with an example?
Space and AstronomyWe 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
on April 25, 2022
What is complement of number?
Space and AstronomyWhat 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.
on April 25, 2022
How long does the protostar stage last for a star like our sun?
Space and Astronomybetween 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
on April 25, 2022
What is local attraction in land surveying?
Space and AstronomyLocal 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
on April 25, 2022
Is an empty set a proper subset of every set?
Space and AstronomyThe 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
on April 25, 2022
Does a sundial work all year round?
Space and AstronomyThe 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,
on April 25, 2022
How much closer would the Earth be to the sun?
Space and AstronomyThe sun is about 93 million miles away from Earth, and if we think of that distance as a football field, a person starting at one end zone could get about 95 yards before burning up. What would happen if Earth were much closer to the sun? The closer you are to the sun, the
on April 25, 2022
What is the difference between Inflectional and Derivational?
Space and AstronomyThe key difference between inflectional and derivational morphology is that the inflectional morphology deals with the creation of new forms of the same word whereasthe derivational morphology deals with the creation of new words. What is the difference between inflectional and derivational morphemes explain with examples? First, inflectional morphemes never change the grammatical category (part