A pair of parallel conducting plates have potentials of -17 V and 55 V, respectively. An electron is ejected from the plate at potential -17 V and travels to the plate at 55 V. What is the speed of the electron as it strikes the 55 V plate, assuming it left the -17 V plate from rest? The mass of the electron is 9.11 x 
kg.
a. 
b. 
c. 
d. 
b.
You might also like to view...
A series LC circuit contains a 100-mH inductor, a 36.0-mF capacitor and a 12-V battery. The frequency of the electromagnetic oscillations in the circuit is
A. 5.73 × 10?4 Hz. B. 9.55 × 10?3 Hz. C. 0.442 Hz. D. 2.65 Hz. E. 44.0 Hz.
The free-body diagram below represents a 1500-kg car sitting on a 3000-kg bridge supported at its far ends. The car's position is three quarters of the length L from the left end of the bridge. Identify the one error in the torque equation below:
?
?
A pane of red glass transmits primarily
A) red light. B) the complementary color of red light. C) all colors of light.
A car approaches a stationary police car at 36 m/s. The frequency of the siren (relative to the police car) is 500 Hz. What is the frequency (in Hz) heard by an observer in the moving car as he approaches the police car? (Assume the velocity of sound in air is 343 m/s.)
a. 220 b. 448 c. 526 d. 552 e. 383