Who is the father of physics?

Truck traveling west on the highway experiences an acceleration to the east. what could be the cause of this acceleration

What are similarities and differences of reflection, refraction, diffraction and absorption?

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