A car travels 200 km in the first 2.5 hours of a trip. It stops for half an hour and then travels the final 200 Km in 2 hours. Find the average speed of the car.

Aregular polygon has angkes of size 150° each.how many side has the polygon

What is a carrier wave and how does it affect what you hear on the radio

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