Components: If a vector's components are all negative, then the magnitude of the vector is negative.
A. True
B. False
Answer: B
Physics & Space Science
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How many arc seconds are in a degree?
A) 60 B) 3600 C) 600 D) 86400 E) None; seconds measure time and degrees measure temperature.
Physics & Space Science
Express 45°C in °F
A) 81°F B) 25°F C) 57°F D) 113°F E) 127°F
Physics & Space Science
If the ac peak voltage across a 100-ohm resistor is 120 V, then the average power dissipated by the resistor is
A) 102 W. B) 288 W. C) 72 W. D) 144 W. E) 220 W.
Physics & Space Science
Helium condenses into the liquid phase at approximately 4 K. What temperature, in degrees Fahrenheit, does this correspond to?
a. ?182 b. ?269 c. ?118 d. ?452 e. ?484
Physics & Space Science