A ball is thrown horizontally from the top of a building. What will be its vertical displacement from the top of building 2.0 seconds after it leaves your hands?
A) 4.9 m
B) 9.8 m
C) 19.6 m
D) 40.2 m
E) 52.4 m
C
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The ground state is the lowest energy level in an atom
Indicate whether the statement is true or false
What is the quantum number n of a particle of mass m confined to a one-dimensional box of length L when its energy is 2 h2/mL2?
a. 2 b. 8 c. 4 d. 1 e. 16
In Galileo's thought experiment about rolling balls, Galileo argued that:
a. a ball rolling up the tilted surface speeds up. b. a ball rolling down the tilted surface slows down. c. a ball rolling on a level surface speeds up. d. a ball rolling on a the level surface continues at the same speed. e. a ball rolling on a level surface slows down.
A catenary in nature is evident in
A) eggs. B) a necklace drooping between your fingers. C) the domes of some modern buildings. D) all of the above