« previous next »

Author Question: For absorption spectra to exist A) the light source must be a gas. B) partially absorbent ... (Read 44 times)

mckennatimberlake

  • Hero Member
  • *****
  • Posts: 559
on: Jul 29, 2018
For absorption spectra to exist
 
  A) the light source must be a gas.
  B) partially absorbent material must exist between the light source and the spectroscope slit.
  C) the spectroscope must be equipped with an absorption cell.
  D) all of the above
  E) none of the above

Question 2

A person running in place on an exercise machine for 10 minutes uses up 17 Calories. Another person exercises by repeatedly lifting two 2.5-kg weights a distance of 50 cm.
 
  How many repetitions of this exercise are equivalent to 10 minutes of running? A) 730
  B) 1450
  C) 1500
  D) 2200
  E) 2900


brbarasa

  • Sr. Member
  • ****
  • Posts: 308
Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: B

Answer to Question 2

E


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

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.

Did you know?

Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

Did you know?

Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.

Did you know?

Critical care patients are twice as likely to receive the wrong medication. Of these errors, 20% are life-threatening, and 42% require additional life-sustaining treatments.

Did you know?

Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.

The absorption of light energy by pigment molecules in the light-harvesting complex, and the path th The absorption of light energy by pigment molecules in the light-harvesting complex, and the path th
Tropical savanna and grazers in Kenya. The tropical savanna landscape is partially maintained by per Tropical savanna and grazers in Kenya. The tropical savanna landscape is partially maintained by per
Excitation of isolated chlorophyll by light. Excitation of isolated chlorophyll by light.
The connector is unplugged from the injector and a noid light is plugged into the injector ... The connector is unplugged from the injector and a noid light is plugged into the injector ...
Check heat source for temperature. Evaluate the amount of heat given off from the source using your ... Check heat source for temperature. Evaluate the amount of heat given off from the source using your ...
Energetics of the two-photosystem light reactions Energetics of the two-photosystem light reactions
Video: Cellular slime mold life cycle Animation

For a complete list of videos, visit our video library