× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
g
2
2
a
2
P
1
Home Q & A Board Science-Related Homework Help Physics
New Topic  
rachel3430 rachel3430
wrote...
solved
Posts: 278
Rep: 0 0
6 years ago
An alpha particle (a helium nucleus, having charge +2e and mass 6.64 × 10-27 kg) moves head-on at a fixed gold nucleus (having charge +79e).  If the distance of closest approach is 2.0 × 10-10 m, what was the speed of the alpha particle when it was very far away from the gold?  (k = 1/4πε0 ,

• 2.3 × 105 m/s

• 2.3 × 106 m/s

• 4.6 × 105 m/s

• 4.6 × 106 m/s
Textbook 
College Physics: A Strategic Approach

College Physics: A Strategic Approach


Edition: 3rd
Authors:
Read 129 times
1 Reply

Related Topics

Replies
wrote...
#1
6 years ago
2.3 × 105 m/s
New Topic      
Quick Reply
Bold
Italic
Underline
Strikethrough
Subscript
Superscript
Insert Math Equation
Font Name
Font Color
Align left
Center
Align right
Bullet list
Numbered list
Insert a horizontal rule
Insert a table
Insert a Quote
View source
Explore
Post your homework questions and get free online help from our incredible volunteers
  1178 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Show Emoticons
:):(;):P:D:|:O:?:nerd:8o:glasses::-):-(:-*O:-D>:-D:o):idea::important::help::error::warning::favorite:
Related Images
  
 774
  
 722
  
 293
Your Opinion
What's your favorite coffee beverage?
Votes: 405
Previous poll results: Do you trust social media networks with protecting your privacy?