This topic contains a solution. Click here to go to the answer

Author Question: Measuring the amount of deuterium in the universe allows us to set a limit on ________. A) the ... (Read 17 times)

Redwolflake15

  • Hero Member
  • *****
  • Posts: 569
Measuring the amount of deuterium in the universe allows us to set a limit on ________.
 
  A) the acceleration of the universe
  B) the total amount of mass in the universe
  C) the density of ordinary (baryonic) matter in the universe
  D) the current age of the universe

Question 2

We cannot see a new moon in our sky because ________.
 
  A) it is above the horizon during the daytime B) no sunlight is illuminating the Moon
  C) it is obscured by Earth's shadow D) a new moon is quite near the Sun in the sky



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ynlevi

  • Sr. Member
  • ****
  • Posts: 338
Answer to Question 1

C

Answer to Question 2

D




Redwolflake15

  • Member
  • Posts: 569
Reply 2 on: Jul 27, 2018
Wow, this really help


ashely1112

  • Member
  • Posts: 347
Reply 3 on: Yesterday
Gracias!

 

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Did you know?

Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%

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?

Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.

Did you know?

Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.

For a complete list of videos, visit our video library