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

Author Question: The SI unit of length, the meter, is currently defined A) as 10-7 of the distance from the North ... (Read 65 times)

littleanan

  • Hero Member
  • *****
  • Posts: 575
The SI unit of length, the meter, is currently defined
 
  A) as 10-7 of the distance from the North Pole to the equator along a meridian running through Paris.
  B) as the length of the path traveled by light in a vacuum during 1/299792485 s.
  C) by the President's foot.
  D) as the distance between two marks on a metal bar make of a platinum-iridium alloy kept at the National Bureau of Standards.
  E) 1,553,164.1 wavelengths of red cadmium light in dry air at 25C.

Question 2

What is the primary topic of study in quantum mechanics?
 
  A) the role played by atoms in astronomy
  B) subatomic particles and the forces with which they interact
  C) the mechanical movements of the heavens
  D) the role of relativity in astronomy



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Hikerman221

  • Sr. Member
  • ****
  • Posts: 346
Answer to Question 1

B

Answer to Question 2

B




littleanan

  • Member
  • Posts: 575
Reply 2 on: Jul 27, 2018
:D TYSM


jomama

  • Member
  • Posts: 346
Reply 3 on: Yesterday
Excellent

 

Did you know?

Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.

Did you know?

The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.

Did you know?

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

Did you know?

Drug-induced pharmacodynamic effects manifested in older adults include drug-induced renal toxicity, which can be a major factor when these adults are experiencing other kidney problems.

Did you know?

The largest baby ever born weighed more than 23 pounds but died just 11 hours after his birth in 1879. The largest surviving baby was born in October 2009 in Sumatra, Indonesia, and weighed an astounding 19.2 pounds at birth.

For a complete list of videos, visit our video library