If a person weighs 150 lb on Earth, what will the person weigh on the Moon?
a. 25 lb
b. 900 lb
c. 150 lb
d. 75 lb
e. 300 lb
a
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The last page of a book is numbered 764. The book is 3.0 cm thick. What is the average thickness of a sheet of paper in the book, in centimeters?
A) 0.0039 B) 0.0078 C) 127.3 D) 0.072 E) 254.7
Which statement is incorrect? The gravitational force on an orbiting satellite due to the Earth
a. aims toward the center of the Earth. b. depends on the Earth's mass. c. depends on the satellite's mass. d. depends on the distance between the Earth and the satellite. e. none of the above
Shown here are the results of Young's experiment demonstrating the interference of light. What does the observation of an interference pattern show about the nature of light? (See page 385-386 in your textbook for more on this experiment.)
a. It shows that light consists of particles. b. It shows that different colors of light have different refractive indices. c. It shows that all colors of light have the same refractive index. d. It shows that light consists of waves. e. It shows that light can be separated into different colors by a prism.
Energy Conservation With Conservative Forces: A block slides down a frictionless inclined ramp and experiences no significant air resistance. If the ramp angle is 17.0° above the horizontal and the length of the surface of the ramp is 20.0 m, find the speed of the block as it reaches the bottom of the ramp, assuming it started sliding from rest at the top.
A. 10.7 m/s B. 114 m/s C. 7.57 m/s D. 19.6 m/s