× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
a
5
k
5
c
5
B
5
l
5
C
4
s
4
a
4
t
4
i
4
r
4
r
4
Home Q & A Board Science-Related Homework Help Physics
New Topic  
SECE Physics SECE Physics
wrote...
Posts: 4
Rep: 0 0
2 years ago
Describe two methods the student could use to increase the force to 64 times its current value?
Post Merge: 2 years ago

A student is investigating Coulomb’s law. The student measures a force of
+2.00 × 10-3 N between the two charged spheres.

Explain how you can tell whether the charges are both positive, both negative, or positive and negative.
Read 150 times
1 Reply

Related Topics

Replies
wrote...
#1
Educator
2 years ago
Quote
Explain how you can tell whether the charges are both positive, both negative, or positive and negative.

If the charge is either both positive or both negative, the force is repulsive (just think of magnets!). So the force would have a positive sign if you want to show direction. If the charges are positive and negative then the force is attractive. And the force would have a negative sign to show direction.

Quote
Describe two methods the student could use to increase the force to 64 times its current value?

You can either increase one of the charges by multiplying it by 64. Or you can move the charges apart by a factor of 1/8. The equation of force is F=kq1q2/r2 so you want to find how to get 64xF.
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  954 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 174
  
 1344
  
 211
Your Opinion
Which country would you like to visit for its food?
Votes: 204
Previous poll results: Which industry do you think artificial intelligence (AI) will impact the most?