a man enters a tall tower, needing to know its height. he notes that a long pendulum extends from the ceiling almost to the floor and that its period is 27.5 s.

(a) how tall is the tower?

(b) if this pendulum is taken to the moon, where the free-fall acceleration is 1.67 m/s2, what is the period there?

Which of the following is considered to be a vector?               a.  temperature    b.  velocity    c.  time    d.  mass

In science and physics what is the standard unit of measure for speed?

Marcella is a four-year-old girl who is a victim of emotional child abuse. based on the child and family services improvement and innovation act of 2011, which action should the government take for marcella? a. the state should arrest marcella’s abuser. b. the state should find a home for marcella as soon as possible. c. the state should enforce stricter laws in the area where marcella resides. d. the state should provide medical assistance to marcella.