What is the point where the Earth is furthest away from the Sun?
A. aphelion
B. solstice
C. perigee
D. full moon.
E. perihelion
Ans: A. aphelion
Physics & Space Science
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A step-up transformer has an input voltage of 110 V (rms). There are 100 turns on the primary and 1500 on the secondary. What is the output voltage?
a. 1 600 V (max) b. 1 650 V (rms) c. 3 260 V (max) d. 165 kV (rms) e. 7.3 V (rms)
Physics & Space Science
Which of the following fibers has the highest specific tensile strength?
(a) Kevlar (b) OUHMWPE (c) SiC (d) Boron
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The Maxwellian speed distribution provides a direct explanation of:
A. thermal expansion B. the ideal gas law C. heat D. evaporation E. boiling
Physics & Space Science