Which of the following is a vector quantity?
A) area
B) volume
C) mass
D) none of the above
Answer: D
Physics & Space Science
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The signs of the zodiac are important to astronomy as they influence the seasons on Earth
Indicate whether the statement is true or false
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A beam of red light and a beam of violet light each deliver the same power on a surface. For which beam is the number of photons hitting the surface per second the greatest?
A) the red beam B) the violet beam C) It is the same for both beams.
Physics & Space Science
A component in an automobile 12-V electrical system has a resistance of 20 ?. How much energy is dissipated by the component each second?
a. 0.14 J b. 7.2 J c. 1.7 J d. 0.6 J
Physics & Space Science
After one _______________. of 18 years 11 1/3 days, the pattern of eclipses repeats
Fill in the blank(s) with correct word
Physics & Space Science