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

Author Question: The meter is presently defined as a. one ten-millionth of the diameter of Earth. b. the wavelength ... (Read 79 times)

ereecah

  • Hero Member
  • *****
  • Posts: 530
on: Jul 28, 2018
The meter is presently defined as
 a. one ten-millionth of the diameter of Earth.
  b. the wavelength of a line in the spectrum of krypton-86.
  c. the length of a platinum-iridium bar.
  d. the distance light travels in a vacuum in a very short time.

Question 2

The meter was defined originally as
 a. one ten-millionth of the diameter of Earth.
  b. one ten-millionth of the distance from the equator to the North Pole.
  c. the wavelength of a line in the spectrum of krypton-86.
  d. the length of a platinum-iridium bar.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

strudel15

  • Sr. Member
  • ****
  • Posts: 324
Reply #1 on: Jul 28, 2018
Answer to Question 1

d

Answer to Question 2

b


ereecah

  • Hero Member
  • *****
  • Posts: 530
Reply #2 on: Jul 28, 2018
Both answers were spot on, thank you once again


strudel15

  • Sr. Member
  • ****
  • Posts: 324
Reply #3 on: Jul 28, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates’s recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.

Did you know?

Approximately 500,000 babies are born each year in the United States to teenage mothers.

Did you know?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

Did you know?

Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

Humanmade pollutants may be driving the expansion of the Earth’s tropical belt seen Humanmade pollutants may be driving the expansion of the Earth’s tropical belt seen
Blood glucose measurement. A postprandial test may be self-administered. (a) A lance pierces the ski Blood glucose measurement. A postprandial test may be self-administered. (a) A lance pierces the ski
At breakfast, a middle-class husband sits absorbed in the newspaper and the public affairs of the da At breakfast, a middle-class husband sits absorbed in the newspaper and the public affairs of the da
Peak flow meter. Peak flow meter.
Earth’s Layered Structure Earth’s Layered Structure
Earth’s Oldest Preserved Rocks – 3.8 Billion Years Old, Greenland Earth’s Oldest Preserved Rocks – 3.8 Billion Years Old, Greenland
Video: Fermentation - When Oxygen Is Absent, Pyruvate to Lactate & Pyruvate to Ethanol

For a complete list of videos, visit our video library