Quantum Mechanics Answers

A particle is in the n

th state of an infinite one-dimensional box of length L. Show that 

the probability of finding the particle between L/4 and 3L/4 is 1

2

+

(−1)

𝑘

𝑛𝜋

, where k = 0, 

1, 2, 3... and n = 2k + 1.

What is the mean mass of the Earth converted to pure energy.

Calculate de broglie wavelength and velocity of an electron carrying kinetic energy 2keV

What is sigma z matrix

Using Moseley’s law, obtain the frequency of an X-ray line when L to K transition 

takes place in silver atom. It is given that  = 3.

Gilbert and Lando are pulling two ends of a rope on a frictionless floor with a distance of 15 m. Gilbert weighs 75 kg, and Lando weighs 60 kg. Suppose there is a flag marker between them. Find the center of mass of Gilbert and Lando.

Suppose you are standing on a frozen pond while carrying three wooden blocks that weigh 3.0 kg each. You need to horizontally throw each block away from you at a rate of 5.0 m/s to be able to get to the shore of the pond. Assuming that your mass is 65.0 kg, how fast are you moving after you throw the first block?

What is gamma function integration formula.

A neophyte player catches a 125 g ball moving at 25.0 m/s in 0.02 s. A professional player catches the same ball in 1.0 s by slightly retracting his hand during the catch. Find the forces exerted by the ball on the hands of the two players.