What is the magnitude of the potential difference across the 20-? resistor?
a.
3.2 V
b.
7.8 V
c.
11 V
d.
5.0 V
e.
8.6 V
b
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Ignoring air resistance, the velocity of a falling object
A. is constant B. increases for a while, then becomes constant. C. depends on the mass of the object. D. is constantly increasing
A ship is being pulled through a harbor at constant velocity by two tugboats as shown in the figure. The lines attached to the two tugboats have the same tension of 200,000 N
Each line makes an angle of 28.0° with the direction the ship is being towed. What is the magnitude of the drag force due to the water on the ship? A) 177 × 105 N B) 1.88 × 105 N C) 93.9 × 104 N D) zero E) 3.53 × 105 N
No matter where you live on Earth, the Sun always rises and sets each day
Indicate whether the statement is true or false
The clearest images of Uranus shown in the text have been obtained using:
A) the Hubble Space Telescope. B) infrared ground- based telescopes at the Keck Observatory. C) the Pioneer Spacecraft. D) the Cassini Spacecraft. E) visible light ground-based telescopes at the European Southern Observatory.