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C: they are carbonaceous---made of silicate materials with a lot of carbon compounds so they appear very dark. They reflect only 3 to 4% of the sunlight hitting them. You can tell what they are made of by analyzing the spectra of sunlight reflecting off of them. This reflectance spectra shows that they are primitive, unchanged since they first solidified about 4.6 billion years ago. A sizable fraction of the asteroids are of this type. The asteroid called Mathilde, explored by the NEAR spacecraft is an example of this type.
What else can I help you with?
Which color in the visible spectrum causes the least amount of plant growth?
Green light causes the least amount of plant growth because plants reflect green light rather than absorb it for photosynthesis. This is why plants appear green to us, as they do not utilize green light effectively for growth.
What type of object is abundant between the orbit of Mars and Jupiter?
The asteroid belt lies in between the orbit of Mars and Jupiter. Over 40,000 asteroids with at least a half mile diameter are found in the asteroid belt.Asteroids.
How fast of speed does a astriod go?
I assume you mean "asteroid". The speed of an asteroid is comparable to that of a planet. For example, an asteroid with an orbit similar to Earth's orbit would have a speed similar to Earth, which moves around the Sun at a rate of 30 km/second. An asteroid that is much further out will be slower; one that gets closer to the Sun will move faster, at least during part of its orbit.You can calculate the speed of an asteroid from Earth's speed, and the relative distances to the Sun, using Kepler's Third Law.
What is a solid body moving in space that is a smaller than an asteroid and at least as large as a speck of dust?
A meteoroid. (A "meteor" is the flash of light in the sky.)
How does the activity series of metal reflect the stability of metals?
The metals highest on the list are the least stable.
Do the darkest days have the darkest shadows?
Yes on average, because there is the least available light on those days.
What is the darkest color?
For reflective colors, black is the darkest (in this case, it is a color). For light, their is no darkest color, because all can have equally dim brightness. However, the least illuminating colors are the red (lowest frequency).
Which colours of light are least absorbed by the leaves?
Leaves absorb mostly red and blue light but reflect or transmit green light, which is why they appear green to our eyes. Therefore, green light is the color least absorbed by leaves.
How big does an asteroid need to be in order to impact Earth?
An asteroid needs to be at least 25 meters in diameter to cause significant damage upon impacting Earth.
How many satellittes does Venus' have?
Venus does not have any moons, but there is at least one known asteroid orbiting it.
What is the farming level of p0wnageness in RuneScape?
Look it up in the hi-scores. If he or she has at least level 30, it will appear there.Look it up in the hi-scores. If he or she has at least level 30, it will appear there.Look it up in the hi-scores. If he or she has at least level 30, it will appear there.Look it up in the hi-scores. If he or she has at least level 30, it will appear there.
Which color in the visible spectrum causes the least amount of plant growth?
Green light causes the least amount of plant growth because plants reflect green light rather than absorb it for photosynthesis. This is why plants appear green to us, as they do not utilize green light effectively for growth.
What type of object is abundant between the orbit of Mars and Jupiter?
The asteroid belt lies in between the orbit of Mars and Jupiter. Over 40,000 asteroids with at least a half mile diameter are found in the asteroid belt.Asteroids.
Is there any truth to the rumor about a 2.5 mile wide comet or asteroid confirmed to crash into the Earth in September?
No. (At least not this September)
What has at least two sides that appear to be parallel?
A Trapezoid.
When doing division and multiplication your answer should reflect the number in the problem with the least precise?
false
How fast of speed does a astriod go?
I assume you mean "asteroid". The speed of an asteroid is comparable to that of a planet. For example, an asteroid with an orbit similar to Earth's orbit would have a speed similar to Earth, which moves around the Sun at a rate of 30 km/second. An asteroid that is much further out will be slower; one that gets closer to the Sun will move faster, at least during part of its orbit.You can calculate the speed of an asteroid from Earth's speed, and the relative distances to the Sun, using Kepler's Third Law.
