Which of the following is not a way light and matter interact?
A) emission B) scattering C) transmission D) absorption E) evaporation
E
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The main point of Newton's law of motion is that forces cause
A) velocity. B) energy. C) acceleration. D) All of the above. E) None of the above.
Charge of uniform density (20 nC/m2) is distributed over a cylindrical surface (radius = 1.0 cm), and a second coaxial surface (radius = 3.0 cm) carries a uniform charge density of -12 nC/m2 . Determine the magnitude of the electric field at a point 4.0 cm from the symmetry axis of the two surfaces
a. 0.45 kN/C b. 1.0 kN/C c. 0.73 kN/C d. 0.56 kN/C e. 2.3 kN/C
How is the energy stored in a current-carrying inductor related to the current value, I?
a. directly proportional to I 2 b. directly proportional to I 1/2 c. directly proportional to I d. inversely proportional to I
The surface of the Sun has a temperature of about 5 770 K. If the radius of the Sun is 7 × 10^8 m, determine the power output of the Sun. (Take e = 1, and ? = 5.67 × 10^?8 W/m2/K4)
a. 3.9E+26 W b. 1.2E+26 W c. 6.7E+22 W d. 2.2E+30 W e. 5.5E+17 W