The least energy required to produce forced vibration in an object occurs
A) below its natural frequency.
B) at its natural frequency.
C) above its natural frequency.
D) none of the above
Answer: B
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____________________ is the smallest of the large moons of Uranus and its surface has features called ovoids. These ovoids may have been formed by the upheaval of material by convection in the interior
Fill in the blank(s) with correct word
The Drake equation now tells us that the number of technological civilizations in our Galaxy at this time is:
A) only our own. B) five to ten at most. C) perhaps 3,000. D) millions. E) not known; insufficient data to compute.
State which element is oxidized and which is reduced in the reaction Fe + Cl2? FeCl2
A device that measures absolute air pressure is called a barometer
Indicate whether the statement is true or false