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

Author Question: In order for a substance to sustain a fission chain reaction, one important condition is that A) ... (Read 77 times)

clmills979

  • Hero Member
  • *****
  • Posts: 551
on: Jul 29, 2018
In order for a substance to sustain a fission chain reaction, one important condition is that
 
  A) each fissioning nucleus must release a sufficient number of neutrons.
  B) the nuclei must collide with enough energy to overcome the electrical repulsion between them.
  C) each fissioning nucleus must release a sufficient number of alpha-particles.
  D) energy must be continually supplied from the outside.
  E) the nuclei must stay in shape by maintaining a regular jogging program.

Question 2

When an object 1.15 cm tall is placed 12 cm from a lens, the lens produces an upright image of the object that is 5.75 cm tall. What is the focal length of the lens?
 
  A) 24 cm
  B) 18 cm
  C) 60 cm
  D) 15 cm
  E) 9.0 cm


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

medine

  • Sr. Member
  • ****
  • Posts: 344
Reply #1 on: Jul 29, 2018
Answer to Question 1

A

Answer to Question 2

D


clmills979

  • Hero Member
  • *****
  • Posts: 551
Reply #2 on: Jul 29, 2018
Both answers were spot on, thank you once again


medine

  • Sr. Member
  • ****
  • Posts: 344
Reply #3 on: Jul 29, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.

Did you know?

Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.

Did you know?

Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.

Did you know?

The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.

Did you know?

During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).

Condensation reaction Condensation reaction
Physical findings of the skin indicative of substance abuse Physical findings of the skin indicative of substance abuse
The paleoanthropologist must understand these deformations in order to figure out which strata a fos The paleoanthropologist must understand these deformations in order to figure out which strata a fos
The glycogen synthase reaction The glycogen synthase reaction
The reaction of a PLP-dependent decarboxylation to yield serotonin The reaction of a PLP-dependent decarboxylation to yield serotonin
Balance the given redox reduction equation in basic solution using the half reaction method Balance the given redox reduction equation in basic solution using the half reaction method
Video: Introduction to Epilepsy

For a complete list of videos, visit our video library