3.012 Problem Set 1
Issued:
09/10/04
Due:
09/15/04
3.012
Fall 2004
Graded problems:
1. A simple ionic structure type, with which almost everyone is familiar, is that assumed by
rocksalt, NaCl. The unit cell of the structure has the shape of a cube. If a C
3.012 PS 6 THERMODYANMICS SOLUTIONS
Issued: 11.28.05
Due:
3.012
Fall 2005
THERMODYNAMICS
1. Building a binary phase diagram. Given below are data for a binary system of two
materials A and B. The two components form three phases: an ideal liquid solution,
1. Thermal properties and optimal materials selection (27)
In many situations, product designs include parts whose only function is to conduct or resist the
conduction of heat. Materials for these parts are thus chosen entirely on the basis of their therm
2.003 Engineering Dynamics
Problem Set 9-Solution
Problem 1
Find the equation of motion for the system shown with
respect to:
a) Zero spring force position. Draw the appropriate
free body diagram.
b) Static equilibrium position. Draw the appropriate
free
3 185 Problem Set 4
Introduction to
eat Transfer
Solutions
1. Thermal properties and optimal materials selection
(a) The steady ux is given by Fouriers law: q = k dT . If we have a hot body and a cold body at
dx
certain temperatures and a certain distance
MASSACHUSETTS INSTITUTE OF TECHNOLOGY
2.71/2.710 Optics
Quiz #1 Solutions
Spring 12
1. A Binocular. The simplified optical diagram of an arm of a binocular can be considered
as a telescope, which consists of two lenses of focal lengths f1 = 25cm (objectiv
1. W30 Problem 27.16. (15)
2. A thin metal foil is used to separate hydrogen from other gases with lower diffusivity in the metal. (17)
Combining principles of thermodynamics and diffusion, one can write the flux of a diatomic gas such
as hydrogen through
3.012 PS 6
Issued: 11.29.05
Due: 12.9.05
3.012
Fall 2005
STRUCTURE
1. X-ray generation: What is the minimum wavelength that X-rays emitted from a metal target
can have, when the target is hit by electrons accelerated in a potential difference of 10 kV ?
W