Posted by Greg on Wednesday, December 2, 2009 at 1:10pm.
A metal cable has radius r and is covered by insulation, so that the distance from the center of the cable to the exterior of the insulation is R. The velocity v of an electrical impulse in the cable is
v = C(r/R)^2*ln(r/R)
where c is a positive constant. Find the following limits and interpret your answer
(a) lim R>r+ (v)
(b) lim r>0+ (v)

Calc  derek, Monday, March 28, 2011 at 1:55pm
0 and 1
Answer This Question
Related Questions
 Physics  An electrical cable is atteched to the electrical pole 25m apart. The ...
 Math ( Surveying )  Need help with this problem! Thanks in advance. The ground ...
 Statistics  A survey of 815 students is asked whether or not they have cable TV...
 Physics  A tow truck is pulling a car out of a ditch by means of a steel cable ...
 Physics 2  A cylindrical copper cable carries a current of 1170 A. There is a ...
 Physics  A cylindrical copper cable carries a current of 1070 A. There is a ...
 physics  A cylindrical copper cable carries a current of 1260 A. There is a ...
 Physics  A sign is supported by a cable and a horizontal beam.The beam has a ...
 Physics 2  A cyllindrical copper cable carries a current of 1200 A. There is a ...
 Physics  A mineshaft has an elevator hung from a single steelwire cable of ...
More Related Questions