An electron is released from rest at the negative plate of a parallel-plate capacitor. If the distance across the plate is 2.0 mm and the potential difference across the plate is 6.0 V, with what velocity does the electron hit the positive plate? (me = 9.1 × 10^?31 kg, e = 1.6 × 10^?19 C)
a. 2.1E+5 m/s
b. 1.5E+12 m/s
c. 5.3E+5 m/s
d. 1.5E+6 m/s
e. 2.1E+6 m/s
d
You might also like to view...
In order to slide a 70.0 kg box across the floor at a constant speed, you must push horizontally with a force of 351 N. What is the coefficient of kinetic friction?
A. 0.149 B. 0.584 C. 0.337 D. 0.512 E. 0.678
An automobile and a golf cart traveling at the same speed collide head-on. The impact force is
A) greater on the automobile. B) greater on the golf cart. C) the same for both.
A 20.0-N weight slides down a rough inclined plane which makes an angle of 30.0° with the horizontal. The weight starts from rest and gains a speed of 15.0 m/s after sliding 150 m. How much work is done against friction? Use g = 10 m/s2
A) 1270 J B) 1500 J C) -1500 J D) 229 J E) -229 J
A ball is projected upward with an initial velocity of 10 m/s. It will reach its maximum height in approximately
A. 1.5 s. B. 1 s. C. 2 s. D. 2.5 s. E. 3 s.