You use sunglasses to reduce the glare of the sun when you go outside. you are taking advantages of light’s ability to do which of the following?
possible answers:
to reflect
to refract
to diffract
to polarize

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

For the car in the picture ,in which direction is the normal force? -into the screen -down -out of the screen -up

What is a subatomic particle with a negative charge and very little mass?