« previous next »

Author Question: The great contribution of Tycho Brahe was to A) observe planetary positions with sufficient ... (Read 138 times)

cdr_15

  • Hero Member
  • *****
  • Posts: 546
on: Jul 27, 2018
The great contribution of Tycho Brahe was to
 
  A) observe planetary positions with sufficient accuracy that later enabled Kepler to discover the laws of planetary motion.
  B) discover four moons orbiting Jupiter, thereby lending strong support to the idea that the Earth is not the center of the universe.
  C) offer the first detailed model of a Sun-centered solar system, thereby beginning the process of overturning the Earth-centered model of the Greeks.
  D) discover that planets orbit the Sun in elliptical orbits with varying speed.

Question 2

Massive-star supernovae and white-dwarf supernovae work equally well as standard candles for measuring cosmic distances.
 
  Indicate whether the statement is true or false


kalskdjl1212

  • Sr. Member
  • ****
  • Posts: 353
Reply #1 on: Jul 27, 2018
Answer to Question 1

A

Answer to Question 2

FALSE


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

cdr_15

  • Hero Member
  • *****
  • Posts: 546
Reply #2 on: Jul 27, 2018
Thanks


kalskdjl1212

  • Sr. Member
  • ****
  • Posts: 353
Reply #3 on: Jul 27, 2018
Welcome :)


« previous next »
 

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?

Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.

Did you know?

Blood is approximately twice as thick as water because of the cells and other components found in it.

Did you know?

Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

Did you know?

It is difficult to obtain enough calcium without consuming milk or other dairy foods.

Examples of the most common X-ray positions and the images they produce. Examples of the most common X-ray positions and the images they produce.
Allows access to the nut that has a stud plus other locations needing great depth, such as spark ... Allows access to the nut that has a stud plus other locations needing great depth, such as spark ...
The inguinal area. Take great care when applying deep pressure in this region The inguinal area. Take great care when applying deep pressure in this region
What's the Difference Between England, Great Britain, and United Kingdom? What's the Difference Between England, Great Britain, and United Kingdom?
What is the contribution of studying wing spot in the field? What is the contribution of studying wing spot in the field?
Video: Gastrin (protein digestion)

For a complete list of videos, visit our video library