Physics, 05.10.2019 04:30 neymar6895
Compute j a da for the vector field (given in spherical coordinates): 3r cos ф over the area in the x-y plane within a circle of radius b centered on the origin. hint: the azimuthal unit vector is not constant and cannot come out of the integral. instead use the last line of eq. 1.64 to expand out this unit vector in terms of rectangular coordinates, which can come out of the integral.
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Alead ball is dropped into a lake from a diving board 5m above the water . it hits the water with a certain velocity and then sink with constant velocity in bottom . it reaches the bottom 5 second after it is dropped if g= 10m/s2 . find depth of the lake and average velocity of the ball ?
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Compute j a da for the vector field (given in spherical coordinates): 3r cos ф over the area in the...
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