Which of the following is an example of a star?
A) Venus
B) Pluto
C) The Sun
D) The Moon
C
You might also like to view...
An 920-g piece of iron at 100°C is dropped into a calorimeter of negligible specific heat containing 50 g of ice at 0°C and 92 g of water, also at 0°C
What is the final temperature of the system? The specific heat of iron is 448 J/kg ? K, that of water is 4186 J/kg ? K, and the latent heat of fusion of water is 33.5 × 104 J/kg. A) 0°C B) 11°C C) 14°C D) 24°C E) 32°C
Why do we see a gravitational redshift in the spectrum of the Sun?
A) Time runs slower on the Sun than on Earth, making lines in the solar spectrum have lower frequency and hence longer wavelength than normal. B) Gravity makes light heavy, causing it to appear redder. C) Because of gravity, the Sun is always moving away from us so we see a redshift. D) Spacetime curvature allows red photons of light to escape the Sun more easily than blue photons, leading to an apparent redshift.
What are the three factors which can limit the resolving power of a telescope?
What will be an ideal response?
The magnetic fields of Uranus and Neptune are peculiar in that they are
a. highly inclined to their planet's axis of rotation. b. very weak (virtually zero). c. produced by the solar wind. d. produced by disturbances caused by the orbits of the moons. e. all of the above.