on April 26, 2022
How does a Maksutov Cassegrain telescope work?
Space and AstronomyMak-Casses are primarily reflectingtelescopes, but they use a corrector lens to eliminate aberrations that would result from the mirror design alone. In a Mak-Cass the incoming light passes through the Maksutov corrector lens (sometimes called a meniscus corrector, because of its shape) at the front of telescope. Which is better Schmidt-Cassegrain or Maksutov-Cassegrain? In short,
on April 26, 2022
What are Quadrilaterals kids?
Space and AstronomyA quadrilateral is a four-sided two-dimensional shape. The following 2D shapes are all quadrilaterals: square, rectangle, rhombus, trapezium, parallelogram and kite. What is a quadrilateral kids Meaning? quadrilateral. • a polygon with four angles and four sides. How do you teach kids quadrilaterals? Video quote: Now remember parallelograms have two pairs of parallel lines. And
on April 26, 2022
What is a glide reflection in math definition?
Space and AstronomyIn 2-dimensional geometry, a glide reflection (or transflection) is a symmetry operation that consists of a reflection over a line and then translation along that line, combined into a single operation. What is a glide reflection in math? A glide reflection is a mirror reflection followed by a translation parallel to the mirror. Every glide
on April 26, 2022
What is relevant domain?
Space and AstronomyWhat does relevant domain mean? Relevant domain for a model is a domain that fits the situation. For each of the following models (27-30) give the relevant domain using inequality notation and explain your reasoning in a full sentence. Some problems will have more than one correct answer, so do your best to explain. What
on April 26, 2022
How long was the space shuttle program?
Space and AstronomySpace Shuttle program Program history Duration 1972–2011 First flight ALT-12 August 12, 1977 First crewed flight STS-1 April 12, 1981 Last flight STS-135 July 21, 2011 Why did US end space shuttle program? All of these factors — high costs, slow turnaround, few customers, and a vehicle (and agency) that had major safety problems —
on April 26, 2022
How many equal chords are there in a circle?
Space and AstronomyThere are infinite points on a circle. Therefore, we can draw infinite number of chords of given length. Hence, a circle has infinite number of equal chords. Are two chords equal in a circle? 2) Equal-chords of congruent circles are equidistant from the corresponding centers. If two circles are congruent and AB = CD then
on April 26, 2022
What is the conic section of a circle?
Space and AstronomyAs a conic section, the circle is the intersection of a plane perpendicular to the cone’s axis. The geometric definition of a circle is the locus of all points a constant distance r {\displaystyle r} from a point ( h , k ) {\displaystyle (h,k)} and forming the circumference (C). How do you identify a
on April 26, 2022
Which word best describes a rectangle with diagonals that are perpendicular?
Space and AstronomyWhat best describes a rectangle with diagonals that are perpendicular? If the diagonals of a quadrilateral are perpendicular, then it is a rhombus. False – diagonals don’t have to be congruent or bisect each other. The diagonals of a rectangle bisect its angles. What is it called when diagonals are perpendicular? Basic properties Opposite angles
on April 26, 2022
Is the moon between the earth and the sun?
Space and AstronomyDuring a lunar eclipse, Earth comes between the Sun and the Moon, blocking the sunlight falling on the Moon. There are two kinds of lunar eclipses: A total lunar eclipse occurs when the Moon and Sun are on opposite sides of Earth. A partial lunar eclipse happens when only part of Earth’s shadow covers the
on April 26, 2022
Do nebulae have planets?
Space and AstronomyA planetary nebula is a region of cosmic gas and dust formed from the cast-off outer layers of a dying star. Despite their name, planetary nebulae have nothing to do with planets. Can planets exist in a nebula? The answer would be yes. As the planet orbits its star that orbits the center of the