A point charge (5.0 pC) is located at the center of a spherical surface (radius = 2.0 cm), and a charge of 3.0 pC is spread uniformly upon this surface. Determine the magnitude of the electric field 1.0 cm from the point charge.
A. 0.72 kN/C
B. 0.45 kN/C
C. 0.63 kN/C
D. 0.90 kN/C
E. 0.18 kN/C
Answer: B
You might also like to view...
An electron is confined in a harmonic oscillator potential well. A photon is emitted when the electron undergoes a 3?1 quantum jump
What is the wavelength of the emission if the net force on the electron behaves as though it has a spring constant of 9.6 N/m? (mel = 9.11 × 10-31 kg, c = 3.00 × 108 m/s, 1 eV = 1.60 × 10-19 J, h = 1.055 × 10-34 J ? s, h = 6.626 × 10-34 J ? s) A) 290 nm B) 150 nm C) 190 nm D) 580 nm
The ____________________ of a telescope is determined by the size of the primary lens or mirror
Fill in the blank(s) with correct word
A star has absolute luminosity equal to that of the Sun (1.5 × 108 km from the Earth) but is 10 pc away from the Earth. By what factor will it appear dimmer than the Sun?
A) 2 × 10-9 B) 2 × 10-11 C) 2 × 10-13 D) 2 × 10-15 E) 2 × 10-17
The ____ is the point on the celestial sphere directly above any observer.
Fill in the blank(s) with the appropriate word(s).