Charge of uniform density (80 nC/m3) is distributed throughout a hollow cylindrical region formed by two coaxial cylindrical surfaces of radii 1.0 mm and 3.0 mm. Determine the magnitude of the electric field at a point which is 4.0 mm from the symmetry axis
a. 7.9 N/C
b. 10 N/C
c. 9.0 N/C
d. 8.9 N/C
e. 17 N/C
c
You might also like to view...
In pushing an object on a level surface, work is done against ______________
Fill in the blank(s) with correct word
Gravity obeys an inverse square relation. This statement implies that the force due to gravity between two masses
a. will increase as the distance between the two masses increases. b. will decrease as the square of the distance between the two masses increases. c. will cause the two masses to move away from each other. d. will cause the two masses to move in a straight line. e. will cause the two masses to orbit each other.
If an electron has the same de Broglie wavelength as the wavelength of a 390-nm photon in vacuum,
what is the speed of the electron? (melectron = 9.11 × 10-31 kg, c = 3.0 × 108 m/s, h = 6.626 × 10-34 J ? s) A) 2100 m/s B) 540 m/s C) 1900 m/s D) 1700m/s E) 1500 m/s
A pion has a mean lifetime of 25 ns in its own rest frame. A beam of pions traveling through the laboratory at a speed of 0.60 c is measured to have a mean lifetime of
A. 21 ?s. B. 21 ns. C. 31 ns. D. 31 ?s.