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

Author Question: A radioactive atom has 98 protons and 249 nucleons. If it undergoes alpha decay, what are the number ... (Read 157 times)

fnuegbu

  • Hero Member
  • *****
  • Posts: 539
on: Jul 29, 2018
A radioactive atom has 98 protons and 249 nucleons. If it undergoes alpha decay, what are the number of protons and nucleons, respectively, in the daughter nucleus?
 
  A) 96, 247 B) 94, 247 C) 96, 245 D) 100, 249 E) 100, 245

Question 2

A long thin rod of length L has a linear density (x) = A(L-x)2 where x is the distance from the left end of the rod. (a) How far is the center of mass of the rod from the left end of the rod? (b) What is the mass of the rod?
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

firehawk60

  • Sr. Member
  • ****
  • Posts: 315
Reply #1 on: Jul 29, 2018
Answer to Question 1

C

Answer to Question 2

(a) L/4
(b) AL3/3


fnuegbu

  • Hero Member
  • *****
  • Posts: 539
Reply #2 on: Jul 29, 2018
Both answers were spot on, thank you once again


firehawk60

  • Sr. Member
  • ****
  • Posts: 315
Reply #3 on: Jul 29, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

Did you know?

Immunoglobulin injections may give short-term protection against, or reduce severity of certain diseases. They help people who have an inherited problem making their own antibodies, or those who are having certain types of cancer treatments.

Did you know?

Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.

Did you know?

The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.

Did you know?

Human kidneys will clean about 1 million gallons of blood in an average lifetime.

Apparent motion of Alpha Centauri relative to Beta Centauri Apparent motion of Alpha Centauri relative to Beta Centauri
HIV-positive men with a high number of life stressors progress more quickly to AIDS than those with ... HIV-positive men with a high number of life stressors progress more quickly to AIDS than those with ...
Mayan Number Mayan Number
What is the total number of valence electrons in a silicate ion, SiO32-? What is the total number of valence electrons in a silicate ion, SiO32-?
Plot showing the number of genes on each human chromosome Plot showing the number of genes on each human chromosome
Number writing practice 1-30 kindergarten Number writing practice 1-30 kindergarten
Video: Secondary Active Transport

For a complete list of videos, visit our video library