Answer:

Explanation:
The electric force exerted on the electron is given by:

where
is the magnitude of the electron charge
E = 40000 V/m is the electric field
Substituting,

By comparison, the gravitational force exerted on the electron is:

where
is the mass of the electron
g = 9.8 m/s^2 is the acceleration due to gravity
Substituting,

Thunderstorms might form on warm days simply because heat is what causes evaporation, causing rain. Thunderstorms also form when the atmosphere is unstable! Meaning the hot air is above the cold air, evaporation occurs, it rains, and then rapid expansion of heat in the air caused by lighting causes thunder.
Answer:
<h2>28.57 hours</h2>
Explanation:
The time taken can be found by using the formula

d is the distance
v is the velocity
From the question we have

We have the final answer as
<h3>28.57 hours</h3>
Hope this helps you
Answer:

Explanation:
Newton's ring equation relates the initial and final diameter of the ring, to the index of refraction of the air and the index of refraction of the liquid between the lens and the plates, as follows:

Solving for :

Recall that the refractive index of the air is 1. So, replacing the given diameters:
