A conical pendulum is constructed with a string 2.00 m in length. The pendulum is set in horizontal circular path the vertical axis. If the angle the string makes with the vertical axis is 45.0 degrees, then the angular velocity of the conical pendulum is
A. 4.00 rad/s.
B. 3.55 rad/s.
C. 3.04 rad/s.
D. 2.63 rad/s.
E. 2.01 rad/s.
D. 2.63 rad/s.
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The process of converting a sequence of nucleotides in a section of DNA to a sequence of nucleotides in RNA, as a precursor to protein synthesis is called
A) encryption B) translation C) deciphering D) transcription
An object is placed 40 cm in front of a 20 cm focal length converging lens. How far is the image of this object from the lens?
A) 40 cm B) 80 cm C) 20 cm D) 13 cm E) none of the given answers
A father and his young daughter are on very clean ice, so there is very little friction (the father has more mass than the daughter). The father pushes his daughter forward and she slides away at a speed of 3 m/s. The father's velocity is
A. 3 m/s in the same direction as his daughter. B. zero. C. 3 m/s in the opposite direction as his daughter. D. smaller than 3 m/s in the opposite direction as his daughter. E. smaller than 3 m/s in the same direction as his daughter.
The most abundant gas in the atmosphere is
a. oxygen. b. nitrogen. c. water vapor. d. carbon dioxide.