A charge of 5.0 pC is distributed uniformly on a spherical surface (radius = 2.0 cm), and a second charge of ?2.0 pC is distributed uniformly on a concentric spherical surface (radius = 4.0 cm). Determine the magnitude of the electric field 3.0 cm from the center of the two surfaces
a. 30 N/C
b. 50 N/C
c. 40 N/C
d. 20 N/C
e. 70 N/C
b
You might also like to view...
The mass of 6 million atoms of a diatomic gas is 
What is the atomic mass of this gas?
A. 25.5 u B. 51.0 u C. 2.55 u D. 5.10 u
You are holding your physics book, pushing upwards on it with the palm of your hand. The reaction to the weight of the book is the force on __________ by __________
Fill in the blank(s) with correct word
Elastic Collisions: In the figure showing an isolated system, determine the character of the collision. The masses of the blocks, and the velocities before and after, are shown. The collision is
A. perfectly elastic. B. partially inelastic. C. completely inelastic. D. characterized by an increase in kinetic energy. E. not possible because momentum is not conserved.
What are the major reasons that the energy use rate has decreased over the last quarter century as compared to the preceding quarter century?
What will be an ideal response?