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

Author Question: How hot was the universe at time zero? A) 2.73 K B) 5, 800 K C) 16, 000 K D) 1032 K E) We ... (Read 66 times)

lunatika

  • Hero Member
  • *****
  • Posts: 548
on: Jul 27, 2018
How hot was the universe at time zero?
 
  A) 2.73 K
  B) 5, 800 K
  C) 16, 000 K
  D) 1032 K
  E) We have no theory capable to addressing this question.

Question 2

In the Bohr model, the transitions of electrons down to ground state produce the Lyman lines in the ultraviolet.
 
  Indicate whether the statement is true or false


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

wuly

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

E

Answer to Question 2

TRUE


lunatika

  • Hero Member
  • *****
  • Posts: 548
Reply #2 on: Jul 27, 2018
Both answers were spot on, thank you once again


wuly

  • Sr. Member
  • ****
  • Posts: 327
Reply #3 on: Jul 27, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

Although not all of the following muscle groups are commonly used, intramuscular injections may be given into the abdominals, biceps, calves, deltoids, gluteals, laterals, pectorals, quadriceps, trapezoids, and triceps.

Did you know?

The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.

Did you know?

On average, the stomach produces 2 L of hydrochloric acid per day.

Did you know?

Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.

Did you know?

The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

Time Slows Down Near Matter Time Slows Down Near Matter
Structure in the Universe Structure in the Universe
Results from sequential study of two cohorts tested at three ages and at three different points in t Results from sequential study of two cohorts tested at three ages and at three different points in t
Time course and phases of a nerve cell going from resting potential to action potential Time course and phases of a nerve cell going from resting potential to action potential
Magnitude of Geologic Time Magnitude of Geologic Time
Over time, cells acquire mutations. Two independently acquired mutations in the same cell may be suf Over time, cells acquire mutations. Two independently acquired mutations in the same cell may be suf
Video: Evolutionary tree of life Animation

For a complete list of videos, visit our video library