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 26 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?

Colchicine is a highly poisonous alkaloid originally extracted from a type of saffron plant that is used mainly to treat gout.

Did you know?

Over time, chronic hepatitis B virus and hepatitis C virus infections can progress to advanced liver disease, liver failure, and hepatocellular carcinoma. Unlike other forms, more than 80% of hepatitis C infections become chronic and lead to liver disease. When combined with hepatitis B, hepatitis C now accounts for 75% percent of all cases of liver disease around the world. Liver failure caused by hepatitis C is now leading cause of liver transplants in the United States.

Did you know?

In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).

Did you know?

Oxytocin is recommended only for pregnancies that have a medical reason for inducing labor (such as eclampsia) and is not recommended for elective procedures or for making the birthing process more convenient.

Did you know?

Hip fractures are the most serious consequences of osteoporosis. The incidence of hip fractures increases with each decade among patients in their 60s to patients in their 90s for both women and men of all populations. Men and women older than 80 years of age show the highest incidence of hip fractures.

Chain of Infection Chain of Infection
The d-aminolevulinic acid syntheses reaction The d-aminolevulinic acid syntheses reaction
Sodium has a strong reaction to water Sodium has a strong reaction to water
To find derivative us the chain rule To find derivative us the chain rule
Choose the reaction that illustrates Hf for KHCO3. Choose the reaction that illustrates Hf for KHCO3.
How many grams of NO are required to produce 145 g of N2 in the following reaction? 4NH3 + 6NO ... How many grams of NO are required to produce 145 g of N2 in the following reaction? 4NH3 + 6NO ...
Video: Physiology of Asthma

For a complete list of videos, visit our video library