The particle that orbits the central core inside an atom is the electron
Indicate whether the statement is true or false
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The net force on a moving object suddenly becomes zero. The object then
A. stops abruptly. B. stops during a short time interval. C. changes direction. D. continues at constant velocity. E. slows down gradually.
Abby throws a ball straight up and times it. She sees that the ball goes by the top of a flagpole after 0.50 s and reaches the level of the top of the pole after a total elapsed time of 4.10 s
What was the speed of the ball at as it passed the top of the flagpole? A) 6.40 m/s B) 16.2 m/s C) 17.6 m/s D) 29.0 m/s E) 33 m/s
A European sports car dealer claims that his product will accelerate at a constant rate from rest to a speed of 100 km/hr in 8.00 s. What is the speed after the first 5.00 s of acceleration? (Hint: First convert the speed to m/s.)
a. 34.7 m/s c. 23.1 m/s b. 44.4 m/s d. 17.4 m/s
If a microscopic particle's uncertainty in velocity is reduced,
A) its uncertainty in position must decrease enough to satisfy the uncertainty principle. B) its uncertainty in position must remain unchanged. C) its uncertainty in position must increase enough to satisfy the uncertainty principle.