Before colliding, the momentum of Block A is -100 kg*m/s, and Block B is -150 kg*m/s. After, Block A has a momentum -200 kg*m/s. What is the momentum of Block B afterwards? (Unit = kg*m/s)
Remember: right is +, left is -

Which of the following correctly describes the early view of catastrophism?

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? question 2 options: the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the cold balloon expands and rises. the warm balloon shrinks and sinks. the warm balloon expands and rises. the cold balloon shrinks and sinks.

Consider a system to be two train cars traveling toward each other. what is the total momentum of the system before the train cars collide?   kg • what must the total momentum of the system be after the train cars collide?   kg •