If Julie is wearing her seat belt, she comes to rest in a time of 0.20 seconds. What is the magnitude of the average force (in newtons) exerted on Julie (mostly by the seat belt) as she is slowing down

Ahypothesis is? close agreement by competent observers of observations of the same phenomena. a guess that has been tested over and over again and always found to be true. an educated guess that has yet to be proven by experiment. the long side of a right triangle. a synthesis of a large collection of information that includes guesses.

Which best represents the law of conservation of mass ?

We put a force of 50n on an object and the acceleration is 100 m/s². what is the mass of the object?