Electron in Homogeneous Electric Field

AI Thread Summary
The discussion focuses on calculating the motion of an electron in a homogeneous electric field of 300 N/C directed vertically upwards. Key points include determining the force acting on the electron, which is influenced by the electric field, and calculating its acceleration, which also points upwards. The initial velocity of the electron is given as 5.00 x 10^6 m/s at a 30-degree angle, leading to the need to find both vertical and horizontal components of this velocity. It is noted that the horizontal component remains constant while the vertical component changes due to the electric field's influence. The discussion seeks to apply kinematic equations to find the maximum height reached by the electron above its original level.
jakk2
Messages
2
Reaction score
0
please help me :(

Electron inserted in a homogeneous electric field to measure 300 N / C, which
directed vertically upwards. The initial velocity of the electron is far
5,00 10^ × 6 m/s and goes to 30 degrees, above the skyline. a) Find the maximum height that
reaches the electron above the original level.

please help i m stuck
 
Physics news on Phys.org


What is the force on the electron due to electric field?
What is the acceleration and its direction?
What are the vertical and horizontal components of velocity?
Which component remains constant and which component changes?
Which kinematic equation relates initial velocity, final velocity, displacement and acceleration?
 
I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19. For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
Thread 'A cylinder connected to a hanging mass'
Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
Back
Top