In terms of focal length, how far behind the camera lens

An Introduction to Thermal Physics 1
Problem 13P Use a Maxwell relation from the previous problem 1 and the third law of thermodynamics to prove that the thermal expansion coefficient ? (defined in Problem 2) must be zero at T = 0. Problem 1: Functions encountered in physics are generally well enough behaved that their mixed partial d

Campbell Biology 9
Compare and contrast aerobic and anaerobic respiration.

University Physics with Modern Physics (1) 14
A flat piece of glass covers the top of a vertical cylinder that is completely filled with water. If a ray of light traveling in the glass is incident on the interface with the water at an angle of ua = 36.2, the ray refracted into the water makes an angle of 49.8o with the normal to the interface. W

Principles of Economics 6
Why is frictional unemployment inevitable? How might the government reduce the amount of frictional unemployment?

Concepts of Biology 1
Magnesium has an atomic number of 12. Which of the following statements is true of a neutral magnesium atom? a. It has 12 protons, 12 electrons, and 12 neutrons. b. It has 12 protons, 12 electrons, and six neutrons. c. It has six protons, six electrons, and no neutrons. d. It has six protons, six ele

Cognitive Psychology 3
What is the difference between explicit memory and implicit memory? What are the two types of explicit memory? The three types of implicit memory?

Biology: The Dynamic Science 5
Which major groupings of animals defined on the basis of morphological characters have been confirmed by molecular sequence studies?