The period of oscillation for a signal having a frequency of 60 Hz is 60 seconds
a. True
b. False
Indicate whether the statement is true or false
False
Physics & Space Science
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In the Big Bang, about 75% of the normal matter by mass was hydrogen atoms, and the other 25% almost entirely helium
Indicate whether the statement is true or false
Physics & Space Science
Between 0° and 4°C, the volume coefficient of expansion for water
a. is positive. b. is zero. c. is becoming less dense. d. is negative.
Physics & Space Science
The Cenozoic era consists of only two periods: the ______________ and the Quaternary
Fill in the blank(s) with correct word
Physics & Space Science
Which of the following is that form of energy associated with an object's motion?
a. potential c. bio-chemical b. thermal d. kinetic
Physics & Space Science