on April 22, 2022
How often is a total lunar eclipse?
Space and Astronomyevery 2.5 yearsevery 2.5 years. When was the last total lunar eclipse? The last total lunar eclipse visible from the United States occurred May 26, and another one is in the cards for May 16, 2022. As for the next rare and dramatic total solar eclipse, the last one occurred in the United States on
on April 22, 2022
What is necessary to calculate a star’s distance from Earth?
Space and AstronomyTo calculate an object’s distance from Earth in light-years, astronomers must first know the object’s age in years. Light in space travels approximately 9.5 trillion km per year. Therefore, an object’s distance from Earth in light-years is equivalent to the object’s age in years. What is necessary to calculate a stars distance from earth? Astronomers
on April 22, 2022
What is Secant used for?
Space and AstronomyThe secant is the reciprocal of the cosine. It is the ratio of the hypotenuse to the side adjacent to a given angle in a right triangle. How is secant used in the real world? The secant is what joins two points or is a slope between two points. So when we make calls and
on April 22, 2022
Do plants lean toward sun?
Space and AstronomyAs we know from looking at plants on a windowsill, they grow toward the sunlight to be able to generate energy by photosynthesis. Now scientists have provided definitive insights into the driving force behind this movement — the plant hormone auxin. Does plants lean towards the light? Sensitive Cells The plants lean because of a
on April 22, 2022
How do I know what type of conics I have?
Space and AstronomyIf they are, then these characteristics are as follows: Circle: When x and y are both squared and the coefficients on them are the same — including the sign. … Parabola: When either x or y is squared — not both. … Ellipse: When x and y are both squared and the coefficients are positive
on April 22, 2022
What is an inscribed and circumscribed circle?
Space and AstronomyA circle is circumscribed about a polygon if the polygon’s vertices are on the circle. For triangles, the center of this circle is the circumcenter. A circle is inscribed a polygon if the sides of the polygon are tangential to the circle. For triangles, the center of this circle is the incenter. What is meant
on April 22, 2022
How does Hester feel about her sin?
Space and AstronomyIn chapter six Hawthorne writes that Hester knows “her deed had been evil” (92). This evil deed, in Hester’s eyes, causes Pearl to act sinful, so Hester feels overwhelming guilt. At this point Hester feels that her actions were evil and were her fault, therefore she is sorry for committing adultery. Is Hester ashamed of
on April 22, 2022
What is the rectangular shape?
Space and AstronomyA rectangle is a 2D shape that has 4 sides, 4 corners, and 4 right angles. Opposite sides of a rectangle shape are the same length, with one pair being longer than the other pair. If all the sides of a rectangle were the same size, it would be known as a square. What are
on April 22, 2022
Why is a rhombus not a square?
Space and AstronomyA rhombus is a quadrilateral with all sides equal in length. A square is a quadrilateral with all sides equal in length and all interior angles right angles. Thus a rhombus is not a square unless the angles are all right angles. How do you prove that a rhombus is not a square? All the
on April 22, 2022
How do you find the probability of 3 events?
Space and AstronomyProbability calculator for 3 events Probability at least one event occurs out of the three: P(A ∪ B ∪ C) ; Probability of all three events happening: P(A ∩ B ∩ C) ; Probability that exactly one of three events happens: P(A ∩ B’ ∩ C’) + P(A’ ∩ B ∩ C’) + P(A’ ∩