29,330

35

The Homework Library (HL) is a database of solved problems.

HL materials are not original and are therefore made available for the sole purpose of studying and learning.
**Misuse of HL materials is strictly forbidden.**

The HL was created for students who need immediate help, and in many cases you can find step-by-step
explanations on how to solve a problem or examples of proper writing, including the use of citations,
references, bibliographies, and formatting.

If you don’t find what you are looking for within our HL database, please reach out to one of our tutors
and schedule a tutoring session.

1. What is the half thickness of y-rays from ¹³⁷...

1. What is the half thickness of y-rays from ¹³⁷Cs in lead ? 2. Compute the per cent of an incident beam of y-rays from ¹³⁷Cs after passing through 2 mm of lead. 3. Would the semilog graph of intensity versus thickness of the absorber be a straight line if the Y-radiation c...

Table 1: Data Table 1 01 Q2 Q.1) Show that the angle betw...

Table 1: Data Table 1 01 Q2 Q.1) Show that the angle between the two telescope positions of the reflected slit image ( see Fig 10) is equal to 2a where a is the prism angle. Analysis: Estimate an experimental value for the prism angle a and its associated uncertainity with the appropriate numb...

Questions Q.1) Show that the SI units for Planck S constant...

Questions Q.1) Show that the SI units for Planck S constant h are equal to the SI units of angular momentum. Q.2) Calculate the magnitude of the Bohr radius. Q.3) Calculate the speed of the electron moving in an orbit whose radius is equivalent to the Bohr radius. Q.4) Using your value for the...

1 Exercise 5.2 (10 points) (a) Let us approximate an elect...

1 Exercise 5.2 (10 points) (a) Let us approximate an electron in the n-th shell of an atom as being like an electron in the n-th shell of a hydrogen atom with an effective nuclear charge z. Use your knowledge of the hydrogen atom to calculate the ionization energy of this electron (i.e., the en...

3) The Madelung constant for the infinite line of ions of al...

3) The Madelung constant for the infinite line of ions of alternating sign a conditionally (not absolutely) convergent series. Show by explicit calculation (a computer program would be handy since you need a lot of terms) that(1-1/2) + (1/3-1/4) + (1/5-1/6) + converges to In(2), but(1-1/2-1/4) +...

3.2 Two atoms in a biological molecule are found to interac...

3.2 Two atoms in a biological molecule are found to interact in a manner that can be described by the Lennard-Jones potential in which the parameters e and ro are constants. It is found that e = 0.49 X 10-18 J, and that the minimum force required to totally separate the atoms is 8.96 X 10-9 ...

1.91 A harmonic motion has an amplitude of 0.05 m and a freq...

1.91 A harmonic motion has an amplitude of 0.05 m and a frequency of 10 Hz. Find its period, maximum velocity, and maximum acceleration. 1.95 When the displacement of a machine is given by x(t) = 18 cos 8t, where X is measured in millimeters and t in seconds, find (a) the period of the machine in...

QUESTION 1 Two railraod cars start from rest rolling d...

QUESTION 1 Two railraod cars start from rest rolling down an inclined track. At the bottom of the track, they collide and couple with a third car. The final speed of the three coupled cars should not exceed 0.71 m/s. What is the maximum height from which the two cars can be released? (Assu...

Use the field and subject filters to browse through Homework Library solutions that pertain to your areas of interest. We are adding new content to the library on a daily basis, so check back from time to time. If you'd like us to post solutions in a subject we don't yet have content for, let us know - we'd like to hear from you!

The solutions will include information such as the original question and sometimes a preview of the solution itself. When you are ready to purchase a solution just click on it and it will be yours.

There is no time limit. Once you purchase a solution you'll have access to it for as long as your registration on the site remains valid. If you can log into your account, you can view any purchased solutions.