Abob of mass m is suspended from a fixed point with a massless string of length l (i. e., it is a pendulum). you are to investigate the motion in which the string moves in a cone with half-angle θ.what tangential speed, v, must the bob have so that it moves in a horizontal circle with the string always making an angle from the vertical? how long does it take the bob to make one full revolution (one complete trip around the circle)? express your answer in terms of m, l, θ and acceleration due to gravity g.

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the word that best describes martin luther king jr.'s tone in the video is dignified

martin luther king, jr. was a social activist and baptist minister who played a key role in the american civil rights movement from the mid-1950s until his assassination in 1968. the video shows his manner and attitude having or showing a composed or serious manner that is worthy of respect so dignified is the correct answer

80cm/s.

24cm/s.

53.3cm/s.

answerdmitry mendeleyev made a workable classification of the elements