Slices of glass or gelatin placed in front of the lens of a camera to prevent certain frequencies of light from reaching the film are called:

Which quantities are scalars? choose all that apply a.distance b.speed c. acceleration d.velocity

Velocity is a description of both speed and direction, therefore it - a vector - a force arrow - the same as acceleration - a magnitude

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.