Why should galaxy collisions be more common in the past?
Space and AstronomyWhy should galaxy collisions have been more common in the past than they are today? Galaxies were closer together in the past because the universe was smaller. What evidence supports the idea that a collision between two spiral galaxies might lead to the creation of a single elliptical galaxy? Were galaxy collisions more common in
How much did Dennis Tito pay to go to space?
Space and Astronomy$20 million$20 million to fly with the Russians to the International Space Station in 2001. How much did it cost Dennis Tito to go to space? $20 million On April 30, 2001, Tito, then 60, accomplished what was a lifelong dream of his when he arrived at the International Space Station (ISS) on a Russian
Does the response variable go on the X axis?
Space and AstronomyOn graphs, the explanatory variable is conventionally placed on the x-axis, while the response variable is placed on the y-axis. If you have quantitative variables, use a scatterplot or a line graph. Does response variable go on X or Y? A scatterplot can help you see trends between paired data. If you have both a
How do gravity and inertia keep the planets in orbit around the sun?
Space and AstronomyThe gravity of the sun and the planets works together with the inertia to create the orbits and keep them consistent. The gravity pulls the sun and the planets together, while keeping them apart. The inertia provides the tendency to maintain speed and keep moving. Does inertia keep the planets in orbit around the Sun?
Do cork trees have acorns?
Space and AstronomyFlowers & Fruits: Once a year, the cork oak produces indehiscent fruits, known as acorns. These acorns are 2-3 cm long and 1-4 cm wide and are fringed with elongated scales. The cork oak is the only oak species with annual and biennial acorns on the same tree. How can you tell an oak tree
What are shapes with curved sides called?
Space and AstronomyTwo-dimensional curved shapes include circles, ellipses, parabolas, and hyperbolas, as well as arcs, sectors and segments. Three-dimensional curved shapes, including spheres, cylinders and cones, are covered on our page on Three-Dimensional Shapes. Can a polygon have curved side? Polygons cannot contain any curved sides, or holes. For example, a square is a polygon but a
What does I in math stand for?
Space and AstronomyThe letter i is used to signify that a number is an imaginary number. It stand for the square root of negative one. In electrical engineering it is often replaced by the letter j to avoid conflict with the symbol for current. See Imaginary numbers. What is the value of i? The value of i
Where is the asteroid belt in our solar system?
Space and AstronomyThere are lots of asteroids in our solar system. Most of them are located in the main asteroid belt – a region between the orbits of Mars and Jupiter. Where does the asteroid belt sit in the solar system? The asteroid belt is a torus-shaped region in the Solar System, located roughly between the orbits
Where can you stargaze in the Bay Area?
Space and AstronomyWhere to go stargazing: Pigeon Point Lighthouse Station State Historic Park. The coast is the darkest area of the Peninsula, making the area around the historic Pigeon Point Lighthouse a great place to stargaze. … Windy Hill’s Spring Ridge Parking Area. … Monte Bello Open Space Preserve. … The Foot of the Dumbarton Bridge. Where
How do you find the area of a Riemann sum?
Space and AstronomyHow do you find the area of a left Riemann sum? Video quote: The curve. So this first rectangle the width goes here from 1 to 2 so the left edge of that interval is 1 if we come up from that point until we meet the curve. We end up right here. How do