Compared to a 1-kg block of solid iron, a 2-kg block of solid iron has the same
A) mass.
B) volume.
C) weight.
D) all of the above
E) none of the above
Answer: E
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Tripling the separation between charges changes the potential energy of a pair of point charges by a factor of
A. 3. B. 9. C. 1/3. D. 1/9. E. 1 (no change).
Single-Slit Diffraction: The figure shows the resulting pattern when a single slit is illuminated by monochromatic light. The slit is 0.3 × 10-3 m wide and is illuminated by light of wavelength 506 nm. A diffraction pattern is seen on a screen 2.8 m from the slit. What is the linear distance on the screen between the first two diffraction minima on either side of the central diffraction maximum?
Fill in the blank(s) with the appropriate word(s).
You throw a rock upward. The rock is moving upward, but it is slowing down. As we define the ground as the origin, the position of the rock is _____ and the velocity of the rock is _____
A. Positive, positive B. positive negative C. negative positive D. Negative Negative
What is the current through the 2.0-? resistor?
a.
1.0 A
b.
0.50 A
c.
1.5 A
d.
2.0 A