Can someone plz hel A car of mass 500Kg is travelling at a speed of 4m/s. This car collides and sticks with a car of mass 500kg which is stopped in a tragic light what is the final speed of the two cars after the collision.
A:2
B:1.5
C:3.0
D:1.0

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final

What is the speed of an object at a given moment?

The particles that are found in the nucleus of an atom are