RAD127 Radiographic Equipment and Computers SI Units in Radiography Ch. 1 & 2 Instructions: Provide the units for each of the following in full and short forms 1. Mass - kg, 9 or (1b)) ・ 2. Energy, Work - W = FD,J 3. Air kerma -(Gya) 4. Absorbed Dose- 5. Effective Dose J/kg (94+) jlkg J/kg, Sv 6. Radioactivity - 5-1, Bq 7. Weight 8. Time 9. Force 10. Power B9 wt, wt-mg, N -(s) F= ma, N, OR 1b. (JIS), P= work It = Fdlt, J

answer 1-8

1 . Solve the equation 2/7=y/3 for y.  2. Solve the equation x/9=2/6 for x.  3. Solve the equation z + 4 = 10    This is algebra and the equation is fraction.

two satellites are in circular orbits around the Earth. Satellite A is at an altitude equal to the Earth's radius, while satellite B is at an altitude equal to twice the Earth's radius. What is the ratio of their periods, Tb/Ta

Fresnel lens: You would like to design a 25 mm diameter blazed Fresnel zone plate with a first-order power of +1.5 diopters. What is the lithography requirement (resolution required) for making this lens that is designed for 550 nm? Express your answer in units of μm to one decimal point. Fresnel lens: What would the power of the first diffracted order of this lens be at wavelength of 400 nm? Express your answer in diopters to one decimal point. Eye: A person with myopic eyes has a far point of 15 cm. What power contact lenses does she need to correct her version to a standard far point at infinity? Give your answer in diopter to one decimal point.

Paraxial design of a field flattener. Imagine your optical system has Petzal curvature of the field with radius p. In Module 1 of Course 1, a homework problem asked you to derive the paraxial focus shift along the axis when a slab of glass was inserted in a converging cone of rays. Find or re-derive that result, then use it to calculate the paraxial radius of curvature of a field flattener of refractive index n that will correct the observed Petzval. Assume that the side of the flattener facing the image plane is plano. What is the required radius of the plano-convex field flattener? (p written as rho )

3.37(a) Five free electrons exist in a three-dimensional infinite potential well with all three widths equal to \( a = 12 \, \text{Å} \). Determine the Fermi energy level at \( T = 0 \, \text{K} \).  (b) Repeat part (a) for 13 electrons.   Book: Semiconductor Physics and Devices 4th ed, NeamanChapter-3Please expert answer only. don't give gpt-generated answers, & please clear the concept of quantum states for determining nx, ny, nz to determine E, as I don't have much idea about that topic.

3.37(a) Five free electrons exist in a three-dimensional infinite potential well with all three widths equal to \( a = 12 \, \text{Å} \). Determine the Fermi energy level at \( T = 0 \, \text{K} \).  (b) Repeat part (a) for 13 electrons.   Book: Semiconductor Physics and Devices 4th ed, NeamanChapter-3Please expert answer only. don't give gpt-generated answers, & please clear the concept of quantum states for determining nx, ny, nz to determine E, as I don't have much idea about that topic.

No chatgpt pls will upvote