Electric field affecting a charged particle question


by crispy_nine
Tags: affecting, charged, electric, field, particle
crispy_nine
crispy_nine is offline
#1
Feb23-08, 10:53 AM
P: 6
At the moment I'm trying to figure out charged particle in electric field behavior and there's a type of question that seems to be confusing me lots.
Ok, here's such a question that i'm not sure about:

A virus rests on the bottom plate of oppositely charged parallel plates in the
vacuum chamber of an electron microscope. The electric field strength between
the plates is 2.00 105 N/C, and the bottom plate is negative. If the virus has a
mass of 1.00 1015 kg and suddenly acquires a charge of 1.60 1019 C, what
are its velocity and position 75.0 ms later? Do not disregard gravity.
Answer: ( y = 6.24 cm )

I was trying to apply conservation of energy but I'm not sure how to involve the time aspect. I'd appreciate any insight. Thanks
Phys.Org News Partner Science news on Phys.org
Review: With Galaxy S5, Samsung proves less can be more
Making graphene in your kitchen
Study casts doubt on climate benefit of biofuels from corn residue
Doc Al
Doc Al is offline
#2
Feb23-08, 11:03 AM
Mentor
Doc Al's Avatar
P: 40,889
To find the time, start by finding the acceleration.


Register to reply

Related Discussions
Electric Field - Charged Rod Question Introductory Physics Homework 1
Charged particle in a magnetic field Special & General Relativity 26
Charged Particle in Magnetic Field Introductory Physics Homework 5
Charged Particle in Magnetic Field Advanced Physics Homework 2
help please, motion of charged particle in mag field Introductory Physics Homework 4