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 92 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?

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

Did you know?

Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.

Did you know?

Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.

Did you know?

During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.

Did you know?

Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

Flower part number is a characteristic difference between monocots and eudicots (a) Flowers and buds Flower part number is a characteristic difference between monocots and eudicots (a) Flowers and buds
Apparent and True Orbits of Alpha Centauri. Apparent and True Orbits of Alpha Centauri.
Isotopes may be stable or radioactive depending on the arrangement and number of neutrons in the nuc Isotopes may be stable or radioactive depending on the arrangement and number of neutrons in the nuc
What mass of sulfur hexafluoride, SF6, has the same number of fluorine atoms as 25.0 g of ... What mass of sulfur hexafluoride, SF6, has the same number of fluorine atoms as 25.0 g of ...
Number writing practice 1-30 kindergarten Number writing practice 1-30 kindergarten
Separation of variable number tandem repeat (VNTR) alleles after PCR amplification Separation of variable number tandem repeat (VNTR) alleles after PCR amplification
Video: Cardiac conductile cells

For a complete list of videos, visit our video library