A trapeze artist, with swing, weighs 800 N; he is momentarily held to one side by his partner so that the swing ropes make an angle of 25.0° with the vertical. In such a condition of static equilibrium, what is the horizontal force being applied by the partner?
a. 338 N
b. 693 N
c. 400 N
d. 373 N
e. 572 N
d
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An observer on Earth's equator would find _______
a. the celestial equator passing at 45 degrees above the northern horizon. b. The celestial equator passing at 45 degrees above the southern horizon. c. that the celestial equator coincides with the horizon. d. the celestial equator passing directly overhead. e. None of the above are true.
Tornadoes are rapidly rotating winds that blow counterclockwise around a small area of intense
A) high pressure. B) low pressure.
A 15-mF capacitor is charged to 40 V and then connected across an initially uncharged 25-mF capacitor. What is the final potential difference across the 25-mF capacitor?
a. 12 V b. 18 V c. 15 V d. 21 V e. 24 V
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