Author Question: Kelli examines her new ruby ring with the jeweler's loop. The ruby appears 7.0 times larger. If her ... (Read 59 times)

s.tung

  • Hero Member
  • *****
  • Posts: 577
Kelli examines her new ruby ring with the jeweler's loop. The ruby appears 7.0 times larger. If her near point is 35. cm, what is the focal length of the lens?
 
  A) 36. mm
  B) 70. mm
  C) 67. mm
  D) 42. mm
  E) 58 mm

Question 2

In the nuclear fusion of four hydrogen nuclei to form a helium nucleus, the resultant helium nucleus
 
  A) is more massive than the four hydrogen nuclei, the missing mass being converted into energy
  B) is radioactive, generating energy by ejected electrons from beta decay
  C) is less massive than the four hydrogen nuclei, the missing mass being converted into energy
  D) has exactly the same mass as the four hydrogen nuclei, the energy being generated by the helium nucleus rearranging itself by emitting a gamma ray



frankwu0507

  • Sr. Member
  • ****
  • Posts: 322
Answer to Question 1

E

Answer to Question 2

C



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

ACTH levels are normally highest in the early morning (between 6 and 8 A.M.) and lowest in the evening (between 6 and 11 P.M.). Therefore, a doctor who suspects abnormal levels looks for low ACTH in the morning and high ACTH in the evening.

Did you know?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

Did you know?

The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.

Did you know?

The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

Did you know?

The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").

For a complete list of videos, visit our video library