A quantum of electromagnetic radiation is a __________
Fill in the blank(s) with correct word
photon
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Graphical Analysis: An object is moving with constant non-zero velocity in the +x direction. The velocity versus time graph of this object is
A. a horizontal straight line. B. a vertical straight line. C. a straight line making an angle with the time axis. D. a parabolic curve.
When an earthquake occurs, the point of initial energy release is called the earthquake's ______________
Fill in the blank(s) with correct word
Coulomb's Law: A point charge Q1 = +6.0 nC is at the point (0.30 m, 0.00 m); a charge Q2 = -1.0 nC is at (0.00 m, 0.10 m), and a charge Q3 = +5.0 nC is at (0.00 m, 0.00 m). What are the magnitude and direction of the net force on the +5.0-nC charge due to the other two charges? (k = 1/4??0 = 9.0 × 109 N ? m2/C2)
What will be an ideal response?
Estimation: A reasonable estimate for the height of an ordinary adult male is
A. 50 cm. B. 70 cm. C. 200 cm. D. 300 cm.