The most abundant component of the atmospheres of Uranus and Neptune is:
A) Hydrogen.
B) Helium.
C) Methane.
D) Ammonia.
E) Nitrogen.
A
You might also like to view...
In comparison to main sequence stars, which of the neutron star properties listed is not considered extreme?
A. mass B. density C. magnetic field D. spin rate
Which of the following statements about electrons is not true?
A) Electrons orbit the nucleus rather like planets orbiting the Sun. B) Within an atom, an electron can have only particular energies. C) Electrons can jump between energy levels in an atom only if they receive or give up an amount of energy equal to the difference in energy between the energy levels. D) An electron has a negative electrical charge. E) Electrons have very little mass compared to protons or neutrons.
A proton is located at the point (x = 1.0 nm, y = 0.0 nm) and an electron is located at the point Find the magnitude of the electrostatic force that each one exerts on the other. (k = 1/4??0 = 9.0 × 109 N ? m2/C2, e = 1.6 × 10-19 C)
A) 1.4 × 10-11 N B) 5.3 × 10-18 N C) 5.3 × 108 N D) 5.9 × 10-15 N
If you have a topographic map of the local area, what is the latitude and longitude of your school?