How many types of elliptical galaxy are there?
Space and AstronomyIt is sometimes said that there are two physical types of ellipticals: the giant ellipticals with slightly “boxy”-shaped isophotes, whose shapes result from random motion which is greater in some directions than in others (anisotropic random motion); and the “disky” normal and dwarf ellipticals, which contain disks. Are there any elliptical galaxies? M87, identified as
How does a water rocket work?
Space and AstronomyThe way a water rocket works is by filling it up partially with water and then pressurizing the inside with air. When the bottom nozzle is opened the internal air pressure forces the water out of this nozzle at high speed causing the rocket to shoot straight up at high speed. How does a water
How many square inches are in a 16 inch circle?
Space and AstronomyHow many square inches are in a 16 inch diameter pie? 200.96 square inches A 16-inch pizza has 200.96 square inches of surface area. How many inches is a 16 inch circle? 16π≈50.27 in. What is the area of a diameter of 16? Area of the circle =πr2=π(8)2=64π How many square inches are in an
What does continuity mean in math?
Space and Astronomycontinuity, in mathematics, rigorous formulation of the intuitive concept of a function that varies with no abrupt breaks or jumps. A function is a relationship in which every value of an independent variable—say x—is associated with a value of a dependent variable—say y. What does continuity mean in calculus? A function is said to be
How long does it take to get caliper test results?
Space and AstronomyHowever, most applicants complete the Caliper Profile in about 75 minutes. When can I expect results? You will receive a phone call from your Caliper consultant the same day if the Caliper Profile is submitted by 2:00 p.m. EST. Can I see my Caliper assessment results? Can I see my results? Caliper does not send
What did Penzias and Wilson win the Nobel Prize for?
Space and Astronomyof cosmic microwave background radiationtheir discovery of cosmic microwave background radiation.” What did Penzias and Wilson discover? This cosmic radiation initially appeared to become weaker as wavelengths of the radiation became shorter. However, when Arno Penzias and Robert Wilson studied cosmic radiation in 1964, they discovered that microwaves with a wavelength of about 7 centimeters
What is the color of Spica?
Space and Astronomyblue-whiteblue-white giant about 220 light years from Earth. It is the 14th brightest star in the sky. Normally, Spica’s blueish color is difficult to discern — it looks white like most other stars.7 июн. 1999 Why does Spica appear blue? Spica’s two stars produce so much of it because their surfaces are tens of thousands
What makes Mercury different from other planets?
Space and AstronomyMercury differs from Venus, Earth, and Mars because it is made up of 70 % metals(mainly iron) and 30 % rock. The other planets are 35 % metal and 65% rock. What makes Mercury unique from other planets? The axis of Mercury has the smallest tilt of all other planets, and this results in a
Does the Earth get closer to the sun?
Space and AstronomyAs the sun loses its momentum and mass, the Earth can slowly slip away from the sun’s pull. Our planet is assuredly not growing closer to the sun in orbit; in fact, our planet is slowly inching away from the sun. Is the Earth moving closer to the sun each year? Earth’s orbit around the
Is line a curve?
Space and AstronomyIn mathematics, a curve (also called a curved line in older texts) is an object similar to a line, but that does not have to be straight. Is line A type of curve? Answer: No. A curve is not a straight line, at the same time as a straight line is not a curve. A