Suppose a two-level system is in a bath with temperature 247 k. the energy difference between the two states is 1.1 × 10-21 j. what is the probability that we will find the system in the higher energy state?

The probability of higher energy state is 0.4200.

Explanation:

Given that,

Temperature = 247 K

Energy difference between two states

We need to calculate the probability of higher energy state

Probability of

Probability of

The total probability is

Here, E₁ = lower energy state

E₂ = higher energy state

Put the value of E₁ in to the formula

Here,

Put the value into the formula

Hence, The probability of higher energy state is 0.4200.

f=ma newton

f=100x2.5=250n

russian is not my first language, so i'm afraid i can't write out an answer in russian, but hopefully you can find a way to do so. here's my best translation of the problem: you're given a plot of a particle's position in one-dimensional space over time, and you're asked to find either the total distance traveled by the particle after 6 seconds had elapsed, or the total displacement of the particle after 6 seconds.

if you want the total distance traveled, you would first need to determine the particle's velocity as a function of time, then integrate that over the 6-second interval. we know the position function is quadratic with roots at 0 and 6, so we have

where is unknown. because the position is parabolic, there is symmetry about the midpoint at , and we know that

so that the position function is

which means the velocity is

then the total distance traveled is

so the total distance traveled is 20 m.

on the other hand, if you want to find displacement: the particle starts at and ends at , so its displacement is 0.