Banked Curves: The curved section of a speedway is a circular arc having a radius of 190 m. This curve is properly banked for racecars moving at 34 m/s. At what angle with the horizontal is the curved part of the speedway banked?
A. 32°
B. 34°
C. 30°
D. 28°
E. 26°
Answer: A
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What is the focal length of a pair of contact lenses that will allow a person with a near point of 125.0 cm to read a newspaper held 25.0 cm from his eyes?
A) -100 cm B) -31.3 cm C) 10.2 cm D) 20.8 cm E) 31.3 cm
Which of these particles has the least mass?
a. electron neutrino b. muon c. electron d. pion
A positive point charge q is placed off center inside an uncharged metal sphere insulated from the ground as shown. Where is the induced charge density greatest in magnitude and what is its sign?
?
?
a.
A; negative
b.
A; positive
c.
B; negative
d.
B; positive
e.
C; negative
Earthquake activity is associated with
A) divergent, convergent, and transform plate boundaries. B) convergent and transform plate boundaries. C) divergent and convergent boundaries. D) transform plate boundaries.