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

Author Question: A radioactive isotope of atomic number Z emits a beta-minus particle, and then the daughter nucleus ... (Read 145 times)

formula1

  • Hero Member
  • *****
  • Posts: 666
on: Jul 29, 2018
A radioactive isotope of atomic number Z emits a beta-minus particle, and then the daughter nucleus emits a gamma ray. What is the atomic number of the resulting nucleus after both processes?
 
  A) Z - 3 B) Z + 1 C) Z - 2 D) Z - 1

Question 2

A child throws a ball with an initial speed of 8.0 m/s at an angle of 40 above the horizontal. The ball leaves her hand 1.0 m above the ground and experiences no appreciable air resistance as it moves.
 
  (a) How far from where the child is standing does the ball hit the ground? (b) How long is the ball in flight before it hits the ground? (c) What is the magnitude of the ball's velocity just before it hits the ground?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ririgirl15

  • Sr. Member
  • ****
  • Posts: 385
Reply #1 on: Jul 29, 2018
Answer to Question 1

B

Answer to Question 2

(a) 7.5 m (b) 1.2 s (c) 9.1 m/s


formula1

  • Member
  • Posts: 666
Reply 2 on: Jul 29, 2018
Great answer, keep it coming :)

Chelseyj.hasty

  • Member
  • Posts: 319
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

Did you know?

About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.

Did you know?

There are over 65,000 known species of protozoa. About 10,000 species are parasitic.

Did you know?

Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Some mangrove islands in the Florida Keys, which number in the thousands, are convenient places to t Some mangrove islands in the Florida Keys, which number in the thousands, are convenient places to t
Atomic Structure of Quartz Atomic Structure of Quartz
Outputs of the Central Nucleus of the Amygdala Outputs of the Central Nucleus of the Amygdala
The cell membrane, cytoplasm, nucleus, nucleolus, ribosomes, centrioles, mitochondria, endoplasmic ... The cell membrane, cytoplasm, nucleus, nucleolus, ribosomes, centrioles, mitochondria, endoplasmic ...
How to multiply a complex number by its conjugate How to multiply a complex number by its conjugate
Structure of the nucleosome core particle as revealed by X-ray diffraction Structure of the nucleosome core particle as revealed by X-ray diffraction
Video: Lipid catabolism ( ketogenesis and oxidation of glycerol) and Lipid anabolism (lipogenesis)

For a complete list of videos, visit our video library