Vertical acceleration of the stone thrown upwards at the top of the trajectory (where its velocity vanishes) is equal to A. g
B. g/2
C. 0
D. nine of the above

Describe the path of a ray that approaches a mirror parallel to the principal axis.

Apulley with a mechanical advantage of 5 will require you to pull times the amount of rope. a. 1/5 b. 5 c. 10 d. 15

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.