Which of the following wavelengths could NOT be present as a standing wave in a 2-m-long organ pipe open at both ends?
A. 4 m
B. 2 m
C. 1 m
D. 0.89 m
E. 0.5 m
Answer: D
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The picture below shows a sphere as it looks at rest. Suppose the sphere is moving to the right at about 90 percent of the speed of light. Which figure below correctly shows the shape of the sphere as you would measure it?
A) Figure A B) Figure B C) Figure C D) Figure D E) Figure E
The work you do when pushing a shopping cart a given distance while applying twice as much force is
A) half as much. B) twice as much. C) four times as much. D) the same amount.
When work is done by a system and no heat is added, the temperature of the system
A) increases. B) decreases. C) remains unchanged.
A three dimensional image made using a laser is a(n)
a. emission spectrum b. absorption spectrum c. wave function d. hologram e. photoelectric effect