How are emission nebulae formed?

An emission nebula is created by ionised gases, usually by high-energy ultraviolet photons emitted from a nearby hot star, that emit light of various wavelengths. What is a emission nebula made of? An emission nebula is a nebula formed of ionized gases that emit light of various wavelengths. The most common source of ionization is

What is the radius of a 20 foot circle?

What is the radius if circumference is 20? Answer. Answer: r=10π cm. How can you calculate the radius of a circle? To find the radius from the circumference of a circle, you have to do the following: Divide the circumference by π, or 3.14 for an estimation. The result is the circle’s diameter. Divide the

How deep should I plant calla lily bulbs?

Calla lilies are typically planted in the spring. However, wait until the threat of frost has passed and the soil has warmed sufficiently before planting calla lilies. Calla lilies should be planted rather deep, about 4 inches (10 cm.) for greater results, and spaced approximately a foot (0.5 m.) How deep do you plant calla

When did Gordon Cooper die?

How did Major Gordon Cooper die? Death. Cooper died at age 77 from heart failure at his home in Ventura, California, on October 4, 2004. Cooper was the last American to have flown a solo mission in space until, on June 21, 2004, Mike Melvill piloted SpaceShipOne to an altitude of 100.1 kilometers (62.2 mi)

How many stars has the Hubble telescope discovered?

How many discoveries has the Hubble telescope made? 1.3 million observations Since its mission began in 1990, Hubble has made more than 1.3 million observations. How many stars can we see with Hubble? Hubble Telescope Reveals What 200 Billion Stars Look Like (Photos) | Space. How many observations has the Hubble telescope discovered? 1.3 million

Is geometry dash a math game?

Is Geometry Dash a learning game? Geometry Dash Education Edition is a free geometry dash game made for education, it runs in a completely different engine (Unity 2d), making robtop able to create things that the cocos2d-x engine could not do, such as extremely fancy effects, better looking particles and more! Is Geometry Dash good

Are two cones always similar?

Are all cones are similar? The two solids are right cones, each with a radius of 4 meters. That means they’ll either be congruent or not at all similar, depending on the heights (both slant and normal). We’ll calculate the slant height of the first cone. How do you know if two cones are similar?

What is difference between microscope and telescope?

The microscope is an optical device that is used to see very small objects ( Unicellular organisms), While telescopes is an optical instrument that is used to see very large objects in space. What is the difference between compound microscope and telescope? In compound microscope, the aperture of objective lens is smaller than eyepiece, while

What is not a function graph?

Use the vertical line test to determine whether or not a graph represents a function. If a vertical line is moved across the graph and, at any time, touches the graph at only one point, then the graph is a function. If the vertical line touches the graph at more than one point, then the

How would you describe a beautiful sky?

How would you describe the sky described? 5 words to describe the sky when it’s good weather 01Cloudless. Generally, good weather is denoted by a lack of clouds in the sky to block the sunshine or bring rain. … 02Fair. … 03Painted. … 04Radiant. … 05Sunny. … 06Darkening. … 07Dreadful. … 08Grey. How do you

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