For normal household temperatures, a comfortable relative humidity is
a. 100%
b. 0%
c. 25%
d. 50%
d
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In pair production, the heaviest particles are formed in reactions that have the highest temperatures
Indicate whether the statement is true or false
The atmosphere of Jupiter is more than 1000 km thick. From Jupiter's surface, the Sun at noon would appear
A) white. B) faintly white. C) not at all. D) none of the above
A boy jumps with a velocity of magnitude 20.0 m/s at an angle of 25.0° above the horizontal. What is the horizontal component of the boy's velocity?
A) 18.1 m/s B) 15.6 m/s C) 8.45 m/s D) 12.6 m/s E) 9.33 m/s
What is proper time?
a. Proper time is the time measured by a clock at rest with respect to the observer. b. Proper time is time based on your actual longitude, not your time zone. c. Proper time is the time given on your GPS. d. Proper time means standard time as opposed to daylight savings time.