22 CHAPTER ONE
V
‘ i v a ‘ _
‘ ['— my
Flux = ed; ~ Flux = 0 Flux = on cos 60": 0.5 120
FIGURE 1.1 4
The flux through the frame of area a is v - a, where y
is the velocity of the fluid, The flux is the volume of fluid
passing through the frame, per unit ti
Physics 23 Final - 3 hours
Harry Nelson
Monday, March 20
Write your answers in a blue book. Calculators and two pages of notes allowed. No textbooks allowed.
Please make your work neat, clear, and easy to follow. It is hard to grade sloppy work accurately
Physics 23 Practice Midterm
Harry Nelson
Thursday, October 23, 2003
Closed Book; 1 page of notes allowed; no calculators. For full credit, make your reasoning clear,
show your work, arrive at clear symbolic answers,
and when a numerical answer is required
Physics 23 Practice Final - 3 hours
Harry Nelson
Monday, December 5
Write your answers in a blue book. Calculators and one page of notes allowed. No textbooks or other
material allowed. Please make your work neat, clear, and easy to follow. It is hard to
é
9,
’a
ELECTROSTATICS: CHARGES AND FIELDS
11
10, The spatial variation of this ﬁeld was carefully analyzedT and
found to be entirely consistent with classical theory out to a distance
of at least 105 kilometers (km) from the planet. This is tanta