Category: Space & Navigation

What happens when a dot product is 0?

A dot product of two vectors is the product of their lengths times the cosine of the angle between them. If the dot product is 0, then either the length of one or both is 0, or the angle between them is 90 degrees. What happens if a dot product is 0? The dot product

Is a rectangle a regular or irregular shape?

Regular vs irregular shapes: What do they look like A square, by definition, is a regular shape: it is, in fact, a regular rectangle. A regular triangle is called an equilateral triangle. Is rectangle irregular shape? Shape (a), for example, is a rectangle (and therefore by definition also a parallelogram and a quadrilateral). It is

What are functions in C++ what are its types?

There are two types of functions in C programming: Library Functions: are the functions which are declared in the C header files such as scanf(), printf(), gets(), puts(), ceil(), floor() etc. User-defined functions: are the functions which are created by the C programmer, so that he/she can use it many times. What are functions in

Do calla lilies bloom the first year?

When Calla Lilies are planted in the spring, they will produce flowers between midsummer and early fall for 3-8 weeks. Their flowering period depends on the temperature, amount of light and the variety. In climates where Calla Lilies are perennial, they typically bloom in late spring to early summer. How long does it take for

What are the characteristics of giants and supergiants?

Subclasses of giants are supergiants, with even larger radii and brightness for their masses and temperatures (see supergiant star); red giants, which have low temperatures but are of great brightness; and subgiants, which have slightly reduced radii and brightness. What are the characteristics of supergiants? supergiant star, any star of very great intrinsic luminosity and

What type of poem is choose something like a star?

What style of poem is choose something like a star? Referencing Keats, a master of the sonnet form, and using what is essentially two quatrains of envelope rhyme, Frost settles into a more staid form himself to present the argument that choosing his sort of poetry (more formal in the traditional sense than that of

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