A car is tavalling the with 25mls and another cir is with 20 mls in opposite direction . calculate the relative velocity.​

Because light travels in a straight line and casts a shadow, isaac newton hypothesized that light is

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

Which is the correct symbol for an isotope of iodine with 53 protons and 78 neutrons?