A scientist studies a model of a widely accepted theory about the universe. the model would most likely help the scientist to A- understand a theory which cannot be observed,
B- prove that the theory would not change in the future,
C-demonstrate how the theory can be changed into a law,
D- prove that all the other theories about the universe are incorrect

NEED HELP ASAP

You are traveling in a car going at a constant speed of 100km/h down a long, straight highway. you pass another car going in the same direction which is traveling at a constant speed of 80km/h. as measured from your car's reference frame this other car is traveling at −20km/h. what is the acceleration of your car as measured from the other car's reference frame? what is the acceleration of the other car as measured from your car's reference frame?

Which is not an example of how an object gains elastic potential energy by stretching? a. jumping on a pogo stick b. pulling on a rubber band c. jumping on a trampoline

Which of the following is the best name for mgcl2