This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Why are some solar eclipses total, and others annular? What will be an ideal ... (Read 80 times)

audragclark

  • Hero Member
  • *****
  • Posts: 579
on: Jul 27, 2018
Why are some solar eclipses total, and others annular?
 
  What will be an ideal response?

Question 2

Which of the following properties of a star can be measured directly, during a single night at the telescope?
 
  A) parallax B) distance
  C) apparent brightness D) luminosity


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

anyusername12131

  • Sr. Member
  • ****
  • Posts: 327
Reply #1 on: Jul 27, 2018
Answer to Question 1

The Moon's orbit is not a perfect circle. When the Moon is closer to Earth, it is big enough to cover the Sun completely; when it is too far away it appears smaller, so a ring of sunlight is still seen.

Answer to Question 2

C


audragclark

  • Member
  • Posts: 579
Reply 2 on: Jul 27, 2018
Thanks for the timely response, appreciate it

jomama

  • Member
  • Posts: 346
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

If you use artificial sweeteners, such as cyclamates, your eyes may be more sensitive to light. Other factors that will make your eyes more sensitive to light include use of antibiotics, oral contraceptives, hypertension medications, diuretics, and antidiabetic medications.

Did you know?

During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).

Did you know?

Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

Did you know?

Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.

Did you know?

The top five reasons that children stay home from school are as follows: colds, stomach flu (gastroenteritis), ear infection (otitis media), pink eye (conjunctivitis), and sore throat.

The sparse plasma (blue) and dust (white) in the tail of comet Hale–Bopp are being The sparse plasma (blue) and dust (white) in the tail of comet Hale–Bopp are being
Solar Spectra Solar Spectra
The Atmosphere Screens Earth from Harmful Solar Radiation The Atmosphere Screens Earth from Harmful Solar Radiation
How Orbital Eccentricity Changes the Amount of Solar Radiation Earth Receives How Orbital Eccentricity Changes the Amount of Solar Radiation Earth Receives
The Fate of Solar Radiation The Fate of Solar Radiation
Solar power in Nunavut Solar power in Nunavut
Video: Simple Diffusion - gases and nonpolar compounds transport

For a complete list of videos, visit our video library