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

Author Question: The circular shape of the Earth's shadow on the Moon during a lunar eclipse suggested to the Greeks ... (Read 61 times)

lunatika

  • Hero Member
  • *****
  • Posts: 548
on: Jul 27, 2018
The circular shape of the Earth's shadow on the Moon during a lunar eclipse suggested to the Greeks that the Earth was
 
  A) cylindrical in shape
  B) at the center of the Universe
  C) flat
  D) spherical in shape

Question 2

Process of Science: Explain how we can use telescopes as time machines to directly test theories of galaxy formation.
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

nikmaaacs

  • Sr. Member
  • ****
  • Posts: 335
Reply #1 on: Jul 27, 2018
Answer to Question 1

D

Answer to Question 2

Telescopes see objects as they were when the light left them. For distant objects, this lookback time can be billions of years and we can literally see galaxies in the process of formation. In this way, we can directly test theories for how they form.


lunatika

  • Member
  • Posts: 548
Reply 2 on: Jul 27, 2018
Wow, this really help

Kedrick2014

  • Member
  • Posts: 359
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Illicit drug use costs the United States approximately $181 billion every year.

Did you know?

There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.

Did you know?

Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.

Did you know?

Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.

Did you know?

The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.

The greenhouse effect: heat trapping by earth's atmosphere. The greenhouse effect: heat trapping by earth's atmosphere.
Aggregated red-cell clusters have a streamlined shape, leading to further viscos Aggregated red-cell clusters have a streamlined shape, leading to further viscos
Earth’s Spheres Earth’s Spheres
Moon Phases Moon Phases
Moon Moon
Circular RNAs are microRNA sponges Circular RNAs are microRNA sponges
Video: Muscle cell structures - actin, myosin and titin filaments

For a complete list of videos, visit our video library