Kirchhoff's Rules: For the circuit shown in the figure, both batteries are ideal. What current flows in the solid wire connecting the upper left and lower left corners of the circuit?
A. 0.25 A
B. 0.50 A
C. 0.75 A
D. 1.0 A
Answer: C
Physics & Space Science
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A dog weighs 200 N. What is his approximate weight in pounds (lb)? (1 lb = 4.45 N)
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Light enters water (n = 1.33) from air. The incident light ray makes a 0.44° angle with the normal to the surface on the air side. What will be the angle made with the normal by the refracted ray on the water side?
A. Nearly 90° B. 1.58° C. 0.188° D. 0.33°
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A star like the Sun emits a(n) ____ spectrum
a. absorption b. emission c. continuous d. Doppler e. ionization
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Surrounding every magnet is
A) a magnetic field. B) an electric field. C) both of these D) neither of these
Physics & Space Science