Suppose that an object travels from one point in space to another. Make a comparison between the magnitude of the displacement and the distance traveled by this object
A) The displacement is either greater than or equal to the distance traveled.
B) The displacement is always equal to the distance traveled.
C) The displacement is either less than or equal to the distance traveled.
D) The displacement can be either greater than, smaller than, or equal to the distance traveled.
C
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The speed of FM waves will be observed to be c = 2.9979 × 10^8 m/s when the antenna emitting the waves is
a. at rest relative to the receiving antenna. b. moving to the right of the detecting antenna at 0.5 c. c. moving to the left of the detecting antenna at 0.5 c. d. moving as described in (a), (b) or (c) above. e. moving at 2.9979 × 10^8 m/s.
A light ray reflects from a surface. If the angle of incidence is 
what is the angle between the reflected ray and the incident ray at the surface?
a. 
b. 
c. 
d. 
e. 
Thermal Expansion: The coefficient of volume expansion of a certain olive oil is 0.68 × 10-3 K-1. A 1.0-L glass beaker is filled to the brim with olive oil at room temperature. The beaker is placed on a range and the temperature of the oil and beaker increases by 25 C°. As a result, 0.0167 L of olive oil spills over the top of the beaker. Which of the following values is closest to the coefficient of linear expansion of the glass from which the beaker is made?
A. 1 × 10-6 K-1 B. 4 × 10-6 K-1 C. 1 × 10-5 K-1 D. 2 × 10-5 K-1 E. 3 × 10-5 K-1
What is the ratio of potential energy to total energy for a planet in a circular orbit around the Sun?
A) 1/2 B) 1 C) 2 D) -1 E) -2