A car moving initially at 30 m/s comes gradually to a stop in 900 m. What was the acceleration of the car?
A. -20 m/s2
B. -0.5 m/s2
C. -10 m/s2
D. -5 m/s2
Answer: B
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COHESIVE FORCES are
A) repulsive forces between unlike molecules. B) repulsive forces between like molecules. C) attractive forces between unlike molecules. D) attractive forces between like molecules.
A fluid grid layout may remove or replace certain screen elements once the page reaches a certain screen size.
Answer the following statement true (T) or false (F)
A telescope that suffers from chromatic aberration and has a low light-gathering power is most likely
a. a small-diameter reflecting telescope. b. a small-diameter refracting telescope. c. a large-diameter refracting telescope. d. a large-diameter reflecting telescope. e. an infrared telescope.
A tiger is running in a straight line. If we double both the mass and speed of the tiger, the magnitude of its momentum will increase by what factor?
A) 8 B) 4 C) D) 16 E) 2