on April 22, 2022
What is included in pre algebra?
Space and AstronomyPre-algebra is a course designed to prepare students for a standard high school algebraic course. Students are introduced to integers, fractions, square roots, step equations, linear equations and decimals and are taught how to solve basic equations using variables. Does pre algebra include geometry? Pre-algebra may include subjects from geometry, especially to further the understanding
on April 22, 2022
How do you place a sundial?
Space and AstronomyWhich way do you face a sundial? Sundials need to point in the direction of True North, and the style (either a sharp straight edge or thin rod, often located at the edge or tip of the gnomon) must be aligned with the Earth’s rotational axis. Can you put a sundial anywhere? One can install
on April 22, 2022
What happens to a star as it ages?
Space and AstronomyWhy do stars expand as they age? As the core heats up, it holds off gravity for a while longer. This allows the star to start fusing Helium into Carbon and Oxygen. This build up of heat expands the outer layers of the star and they expand outward, causing a star like our sun to
on April 22, 2022
How is a rectangle different from a rhombus?
Space and AstronomyA rhombus has four equal sides, whereas, in a rectangle, the opposite sides are equal. The diagonals of a rhombus bisect each other at 90°, whereas the diagonals of a rectangle bisect each other at different angles. In a rhombus, the opposite angles are equal, whereas, in a rectangle, all angles measure 90°. What is
on April 22, 2022
How do you construct a perpendicular line through a given point not on the line?
Space and AstronomyHow do you construct a perpendicular line through a point off the line? Video quote: That line segment a B is perpendicular to line PE and remember this is the symbol for perpendicular. So we have line segment a B is perpendicular to line PE. How do you construct a line parallel to the given
on April 22, 2022
Is the space probe still active?
Space and AstronomyThis mission was one of NASA’s most successful, yielding a wealth of new information. As of November 2017 it is some 116 AU from the Sun (17.34 billion kilometers), and it is hoped the probe will continue to operate until at least 2020. It has left the heliosphere and crossed into interstellar space in December
on April 22, 2022
Why is Saturn’s planet flattest?
Space and AstronomyDue to its low density and rapid rotation, Saturn is the “flattest” planet in our Solar System. Its diameter at the equator is about 8,000 miles greater (or nearly 10%) than its diameter from pole to pole. What is the flattest planet? Saturn is the flattest planet. Its polar diameter is 90% of its equatorial
on April 22, 2022
How do we know that galaxies are moving away from us?
Space and AstronomyAlmost all other galaxies we can observe are moving away from us with the expansion of the universe, according to the Hubble statement. We see their light stretched toward the red end of the visible light spectrum (called redshift). How do we know that galaxies farther away from us are moving faster than nearby galaxies?
on April 22, 2022
How do you transplant calla lilies?
Space and AstronomyDig holes at least 12 to 18 inches apart. If you’re transplanting a potted calla lily, your hole will need to be as deep as your pot is. Otherwise, plant the rhizome around four inches deep. Gently move your calla lily into its new home. What’s the best time to transplant calla lilies? spring The
on April 22, 2022
How do you prove Euclidean algorithm?
Space and AstronomyAnswer: Write m = gcd(b, a) and n = gcd(a, r). Since m divides both b and a, it must also divide r = b−aq by Question 1. This shows that m is a common divisor of a and r, so it must be ≤ n, their greatest common divisor. Likewise, since n divides both