On an ice skating rink, a girl of mass 50. kg stands stationary, face to face with a boy of mass 80. kg. The children push off of one another, and the boy moves away with a velocity of -4.0 m/s. To two significant digits (the tenths place), what is the final velocity of the girl? m/s

An electric current is flowing through the cord below.what will happen to this current if a magnet is brought near the cord? a. the electric current will stop flowing. b. it will exert a force on the voltage. c. the resistance of the wire will decrease. d. it will exert a force on the electric current.

What is the magnitude of the acceleration vector which causes a particle to move from velocity −5i−2j m/s to −6i+ 7j m/s in 8 seconds. answer in m/s.

Describe the three ray tracing steps used to identify an image for the given situation.