Answer:
The speed of electron is 
Explanation:
Given that,
Separation of the plate = 1.20 cm
Suppose the field is
.
If the electron is accelerated from rest near the negative plate and passes through a tiny hole in the positive plate.
What the speed does it leave the hole?
We need to calculate the acceleration
Using formula of electric force



We need to calculate the speed of electron
Using equation of motion


Put the value of acceleration in the formula

Put the value into the formula



Hence, The speed of electron is 
A fatter handle. This allows you to provide more torque to the screw, which should eventually loosen it.
Answer:
3
Explanation:
Applying the formula, we see that the ke gets increased 4 tines.
Answer: A 120 metros por segundo
Explanation: multiplicas la velocidad por el tiempo
Answer:
u = 13.67 m/s
Explanation:
given,
window height = 2 m
window is 7.5 m off the ground on its path up
total distance from the ground to pass the window = 2 + 7.5 = 9.5 m
time taken to go past the window = 1.30 s
using equation of motion



u = 13.67 m/s
hence, the initial velocity of the ball is equal to 13.67 m/s