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

Author Question: Work done within an isolated system can increase the energy of the system. Indicate whether the ... (Read 127 times)

fbq8i

  • Hero Member
  • *****
  • Posts: 527
Work done within an isolated system can increase the energy of the system.
  Indicate whether the statement is true or false

Question 2

About how old was the universe when the microwave background radiation that Penzias and Wilson discovered first became visible?
 a. 1 microsecond (10-6 second) when the electromagnetic force separated out from the electroweak force.
  b. 3 minutes, the start of the period that ended with typical photons unable to produce electron-positron pairs.
  c. 300 thousand years, when matter in the universe became transparent to photons.
  d. 1 million years, when the strong force separated out.
  e. 30 million years, when the strong force separated out.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ryhom

  • Sr. Member
  • ****
  • Posts: 366
Answer to Question 1

F

Answer to Question 2

c




fbq8i

  • Member
  • Posts: 527
Reply 2 on: Jul 28, 2018
Wow, this really help


LegendaryAnswers

  • Member
  • Posts: 341
Reply 3 on: Yesterday
Great answer, keep it coming :)

 

Did you know?

The Food and Drug Administration has approved Risperdal, an adult antipsychotic drug, for the symptomatic treatment of irritability in children and adolescents with autism. The approval is the first for the use of a drug to treat behaviors associated with autism in children. These behaviors are included under the general heading of irritability and include aggression, deliberate self-injury, and temper tantrums.

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?

Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.

Did you know?

Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.

Did you know?

Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.

For a complete list of videos, visit our video library