Maria walks 40 meters along a hallway that heads due North, then turns and walks 30
meters along another hallway that heads due
East. What is the magnitude of the student's
resultant displacement?
A) 10m
B) 35m
C) 50m
D) 70m

the chart show the masses and velocities of two colliding objects that stick together after a collision.

according to the law of conservation of momentum, the momentum of the object after the collision is  

answer

1,500

kg • m/s.

what experimental evidence led scientists to change from the previous model to this one?

a few of the positive particles aimed at a gold foil seemed to bounce back.

the colors of light emitted from heated atoms had very specific energies.

experiments with water vapor showed that elements combine in specific proportions.

cathode rays were bent in the same way whenever a magnet was brought near them.

answerscientific theory;