Avisitor to a lighthouse wishes to determine the height of the tower. the visitor ties a spool of thread to a small rock to make a simple pendulum, then hangs the pendulum down a spiral staircase in the center of the tower. the period of oscillation is 9.01 s. what is the height of the tower? the accel- eration due to gravity is 9.81 m/s2 . answer in units of m.

7.47 = 6.2832*√L/g  

55.80 = 39.48*L/9.8  

L = 55.80*9.8/39.48 = 13.85 m

Your answer should be 13.85m! Hope this helps!

i think it because equal matrices have equal dimensions, only square matrices can be symmetric. for all indices and . every square diagonal matrix is symmetric, since all off-diagonal elements are zero. in linear algebra, a real symmetric matrix represents a self-adjoint operator over a real inner product space.

explanation:

newton's third law, for every action there is an equal and opposite reaction.