Aspherical raindrop 2.5 mm in diameter falls through a vertical distance of 3900 m. take the cross-sectional area of a raindrop = πr2, drag coefficient = 0.45, density of water to be 1000 kg/m3, and density of air to be 1.2 kg/m3. (a) calculate the speed (in m/s) a spherical raindrop would achieve falling from 3900 m in the absence of air drag. m/s

What is tan(61)? а. 1.80 b. 0.49 c. 0.61 d. 0.87

What is a neurotransmitter involved in mood reward, addiction, and motor behaviors?

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.