How Fast Does an Electron Travel in a Weak Electric Field with Gravity?

AI Thread Summary
An electron released in a weak electric field of -2.40 x 10^-10 N/C experiences forces from both the electric field and gravity. To find its speed after traveling 1.8 µm, one must calculate the force due to the electric field and the gravitational force, then determine the net force acting on the electron. Using this net force, the acceleration can be calculated, which can then be applied to kinematic equations to find the final speed. Additionally, there is a request for online resources to better understand electric fields and related physics concepts. Understanding these forces and their effects is crucial for solving the problem effectively.
somebodyelse5
Messages
35
Reaction score
0

Homework Statement



An electron is released from rest in a weak electric field given by vector E = -2.40 10-10 N/C jhatbold. After the electron has traveled a vertical distance of 1.8 µm, what is its speed? (Do not neglect the gravitational force on the electron.)

Dont even know where to begin.
 
Physics news on Phys.org
Steps to consider:
whats the force on the electron due to the E field?
what about due to gravity?
Whats the net force?
How can you use that information?
 
zhermes said:
Steps to consider:
whats the force on the electron due to the E field?
what about due to gravity?
Whats the net force?
How can you use that information?

do you know of any good online physics resources for electro fields? I am having some trouble understanding everything the professor is teaching, and i know this stuff should be much easier than i am making it!
 
I would find the acceleration of the electron. Then look at your kinematic equations
 

Thread 'Rolling without slipping on a curved surface'

Kindly see the attached pdf. My attempt to solve it, is in it. I'm wondering if my solution is right. My idea is this: At any point of time, the ball may be assumed to be at an incline which is at an angle of θ(kindly see both the pics in the pdf file). The value of θ will continuously change and so will the value of friction. I'm not able to figure out, why my solution is wrong, if it is wrong .
View full post »
Thread 'Trying to understand the logic behind adding vectors with an angle between them'

Thread 'Trying to understand the logic behind adding vectors with an angle between them'

My initial calculation was to subtract V1 from V2 to show that from the perspective of the second aircraft the first one is -300km/h. So i checked with ChatGPT and it said I cant just subtract them because I have an angle between them. So I dont understand the reasoning of it. Like why should a velocity be dependent on an angle? I was thinking about how it would look like if the planes where parallel to each other, and then how it look like if one is turning away and I dont see it. Since...
View full post »
Thread 'Correct statement about a reservoir with an outlet pipe'

Thread 'Correct statement about a reservoir with an outlet pipe'

The answer to this question is statements (ii) and (iv) are correct. (i) This is FALSE because the speed of water in the tap is greater than speed at the water surface (ii) I don't even understand this statement. What does the "seal" part have to do with water flowing out? Won't the water still flow out through the tap until the tank is empty whether the reservoir is sealed or not? (iii) In my opinion, this statement would be correct. Increasing the gravitational potential energy of the...
View full post »

Similar threads

Electric Fields Question, What is the speed of the electron?
Replies
1
Views
1K
Speed of Electron Released from Rest in Weak Electric Field
Replies
1
Views
6K
What Is the Magnitude of the Electric Field Between Parallel Plates?
Replies
4
Views
2K
Electron released into an electric field from rest
Replies
1
Views
2K
An electron & a proton are each placed in an electric field
Replies
1
Views
3K
Velocity of an electron within a weak electric field?
Replies
10
Views
8K
Electric Field Force Exerted Vertically
Replies
9
Views
8K
Find distance traveled given electric field + vf and vi
Replies
5
Views
4K
Electron passing through a magnetic and an electric field
Replies
2
Views
2K
Movement of electron in an electric field
Replies
10
Views
7K

Hot Threads

Recent Insights

Back
Top