on April 22, 2022
What is the density wave model?
Space and AstronomyOne of the more successful models developed to explain the origin of spiral arms in galaxies is the density wave model. It is particularly good in describing the formation of the spiral structure we see in grand design spirals. What is the density wave model quizlet? Density wave theory. A model for spiral galaxies that
on April 22, 2022
How many vertices does the pyramid have?
Space and Astronomy5 vertices5 vertices. How many vertices has a pyramid? Triangular-based pyramid All sides are equilateral triangles. A triangular-based pyramid has 4 faces, 4 vertices including the apex and 6 edges. What is a vertices of a pyramid? Vertices, edges and faces Name Faces Vertices Cube 6 (all squares) 8 Square-based pyramid 5 5 Triangular-based pyramid
on April 22, 2022
What is the meaning of inscribed in geometry?
Space and AstronomyIn geometry, an inscribed planar shape or solid is one that is enclosed by and “fits snugly” inside another geometric shape or solid. To say that “figure F is inscribed in figure G” means precisely the same thing as “figure G is circumscribed about figure F”. What does it mean if something is inscribed? 1
on April 22, 2022
How are refracting and reflecting telescopes similar?
Space and AstronomyRefractors telescopes utilize specially designed lenses to focus the light on an image. A Reflector telescope uses mirrors, which causes light to reflect at different angles within the optical tube and extends the overall light path. Reflecting telescopes have many advantages as compared to refracting telescopes. In what way are the refracting telescope and reflecting
on April 22, 2022
Why are Mars moons not round?
Space and AstronomyThe moons are aspherical because gravity is too weak to overcome the rock stresses. Smaller moons are generally less spherical. The nearer moon, Phobos has less dust because it is nearer from Mars and is less able to gravitationally hold onto its residual dust from its cratering than Deimos. Why are the moons of Mars
on April 22, 2022
What does the no hair theorem describe?
Space and AstronomyThe no-hair theorem states that all black hole solutions of the Einstein–Maxwell equations of gravitation and electromagnetism in general relativity can be completely characterized by only three externally observable classical parameters: mass, electric charge, and angular momentum. What is the meaning of the statement that black holes have no hair? The no-hair theorem is the
on April 22, 2022
How do you describe a graph in math?
Space and AstronomyWhat is a graph? In math, a graph can be defined as a pictorial representation or a diagram that represents data or values in an organized manner. The points on the graph often represent the relationship between two or more things. How do you describe a function on a graph? Use the vertical line test
on April 22, 2022
What is covered in Calc 2?
Space and AstronomyCalculus II is the second course involving calculus, after Introduction to Calculus. Because of this, you are expected to know derivatives inside and out, and also know basic integrals. In this course, we will cover series, calculus in more than one variable, and vectors. What topics are covered in Calc 2? Calculus 2 Course summary.
on April 22, 2022
Can you look at a lunar eclipse with a telescope?
Space and AstronomyYou don’t need any special glasses to view a total lunar eclipse. From beginning to end, this celestial event is incredibly safe and simple to view. Even better news is that you can use binoculars and telescopes to look at the moon during a total lunar eclipse without having to worry about using special filters.
on April 22, 2022
What does a concave mirror do to light rays?
Space and AstronomyWhen parallel light rays hit a concave mirror they reflect inwards towards a focal point (F). Each individual ray is still reflecting at the same angle as it hits that small part of the surface. What does a convex mirror do to light rays? A convex mirror or better called as a diverging mirror diverges