What net force will accelerate a 2.0 kg mass at 6.0 m/s ?

Atelevision set that has been running for a while heats up even the air around it. which two laws of thermodynamics could be used to analyze this scenario

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 •  

Dao makes a table to identify the variables used in the equations for centripetal acceleration. what quantities belong in cells x and y?