Through what potential difference must an electron (starting from rest) be accelerated if it is to reach a speed of 3.0 × 10^7 m/s?
a. 5.8 kV
b. 2.6 kV
c. 7.1 kV
d. 8.6 kV
e. 5.1 kV
b
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Acceleration: Suppose that an object is moving with a constant velocity. Which statement concerning its acceleration must be correct?
A. The acceleration is constantly increasing. B. The acceleration is constantly decreasing. C. The acceleration is a constant non-zero value. D. The acceleration is equal to zero.
To be dimensionally consistent, distance [L], velocity [L/T], and acceleration
must be related as follows.
A. 
B. distance = velocity/acceleration
C. 
D. 
Discuss the differences between distance and displacement
What will be an ideal response?
A material has an index of refraction that increases continuously from top to bottom. Of the three paths shown in the figure, which path will a light ray follow as it passes through the material?