A 2000 kg car is traveling on a banked curved icy road. The road is banked at an angle of 12.0 degrees and has a radius of curvature of 500 m. The velocity of the car necessary to travel on the icy road without sliding is
A. 32.3 m/s.
B. 40.5 m/s.
C. 42.8 m/s.
D. 49.5 m/s.
E. 50.2 m/s.
A. 32.3 m/s.
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Coulomb's Law: Two equal and opposite charges are a small distance apart, forming an electric dipole. A positive charge +q is placed above these charges, as shown in the figure, equidistant from both of them. Which diagram below best gives the direction of the net force the dipole exerts on the charge +q?
A. 
B. 
C. 
D. 
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Fill in the blank(s) with correct word
The speed of light is a relativistically invariant quantity
a. True b. False Indicate whether the statement is true or false