Determine the atomic mass of a hypothetical element that occurs on Earth as a mixture of 30.00% 44X (atomic mass of isotope = 44.00 u) and 70.00% 46X (atomic mass of isotope = 46.00 u)
45.40 u
Physics & Space Science
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The Moon is about one-quarter the diameter of Earth. How does its mass compare?
A. The Moon is 1/81 as massive as Earth. B. The Moon is 1/4 as massive as Earth. C. The Moon is 1/6 as massive as Earth. D. The Moon is 1/32 as massive as Earth.
Physics & Space Science
What is the range of star masses for high-mass stars?
A) between 500 and about 1,000 solar masses B) between 200 and about 500 solar masses C) between 8 and about 100 solar masses D) between 2 and about 10 solar masses E) between 2 and about 5 solar masses
Physics & Space Science
What is the magnitude of the angle of dip at Earth's magnetic north pole?
Physics & Space Science
All type I supernovae are caused by white dwarfs
a. True b. False Indicate whether the statement is true or false
Physics & Space Science