« previous next »

Author Question: Why can't current theories describe what happened during the Planck era? A) We do not know how ... (Read 62 times)

lindiwe

  • Hero Member
  • *****
  • Posts: 577
on: Jul 27, 2018
Why can't current theories describe what happened during the Planck era?
 
  A) We do not know how hot or dense the universe was during that time.
  B) We do not understand the properties of antimatter.
  C) We do not yet have a theory that links quantum mechanics and general relativity.
  D) The Planck era was the time before the Big Bang, and we cannot describe what happened before that instant.

Question 2

Which Galilean moon of Jupiter is volcanically active?
 
  A) Io
  B) Europa
  C) Ganymede
  D) Callisto


kalskdjl1212

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

C

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

lindiwe

  • Hero Member
  • *****
  • Posts: 577
Reply #2 on: Jul 27, 2018
Thanks


kalskdjl1212

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


« previous next »
 

Did you know?

Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.

Did you know?

Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.

Did you know?

If you use artificial sweeteners, such as cyclamates, your eyes may be more sensitive to light. Other factors that will make your eyes more sensitive to light include use of antibiotics, oral contraceptives, hypertension medications, diuretics, and antidiabetic medications.

Did you know?

Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.

Did you know?

More than 20 million Americans cite use of marijuana within the past 30 days, according to the National Survey on Drug Use and Health (NSDUH). More than 8 million admit to using it almost every day.

The Basilar Membrane of the Cochlea and Theories of Hearing The Basilar Membrane of the Cochlea and Theories of Hearing
Concentric double-pipe heat exchanger for co-current flow Concentric double-pipe heat exchanger for co-current flow
Current FDA Pregnancy Category Ratings with Examples Current FDA Pregnancy Category Ratings with Examples
When the exhaust is lean, the PCM applies a positive current into the pump cell. When the exhaust is lean, the PCM applies a positive current into the pump cell.
To reverse the direction of operation, the polarity of the current through the motor is reversed. To reverse the direction of operation, the polarity of the current through the motor is reversed.
Describe the Conceptual Forecasting Framework in your own words. Describe the Conceptual Forecasting Framework in your own words.
Video: Photosynthesis overview Animation

For a complete list of videos, visit our video library