What will you see with the following type of optic: Concave mirror
A. Image is smaller |
B. Image is the same |
C. Image is larger |
C. Image is Larger
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A 1200 kg car is moving at 5.0 m/s EAST. It strikes an 1800 kg car at rest. The cars have an elastic collision and move in the EAST or WEST direction. The relative velocity between the cars after the collision is
A. 3.0 m/s WEST. B. 1.0 m/s EAST. C. 4.0 m/s EAST. D. 5.0 m/s EAST. E. 1.0 m/s WEST.
The carburetor of a car is a pipe with a constriction. Compared to the velocity of flow of a mixture of air and gasoline in the main pipe, the velocity in the constriction will be ________. The pressure in the constriction will be ________ than the pressure in the main pipe.
Fill in the blank(s) with the appropriate word(s).
In a standing wave, not necessarily at the fundamental frequency, on a string of length L, the distance between nodes is
a. l/4. b. l/2. c. l. d. L/4. e. L/2.
Sonic Booms: As a supersonic airplane increases its speed more and more, the half-angle of the conical shock wave
A. increases. B. decreases. C. is not affected.