Compared to Ida, Eros, and Gaspra, what was odd about Mathilde?
A) It had a small moon, so we could more accurately find its mass.
B) It was much denser, probably made of iron and nickel, a class M asteroid.
C) It was less dense than water, indicating it was a comet nucleus, rather than an asteroid.
D) It was less dense than rock, but more than ice, suggesting a porous structure.
E) It was the same density as the Earth's Moon, indicating it had been knocked off our Moon.
D
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The symbol for the element that is the major component of steel is ______________
Fill in the blank(s) with correct word
Transparency of the atmosphere is lowest for radiation of
A) ultraviolet light. B) visible light. C) infrared light.
A digital thermometer can make readings to the tenth of a degree at either the Celsius setting or the Fahrenheit setting. Which reading would be more precise?
a. The Fahrenheit setting, since 1 degree Fahrenheit is smaller than 1 degree Celsius b. The Fahrenheit setting, since 1 degree Celsius is smaller than 1 degree Fahrenheit c. The Celsius setting, since 1 degree Fahrenheit is smaller than 1 degree Celsius d. The Celsius setting, since 1 degree Celsius is smaller than 1 degree Fahrenheit
What part of the eye creates the most refraction as light passes through it?
A. Cornea B. Aqueous humor C. Iris D. Lens