Gina designed a model to show the steps in the Nebular theory of formation of
planetary systems. Which of these diagrams best represents the third step of Ginas model? 1) condensation and contraction of cloud due to gravity 2) rotation of cloud and dust 3) formation of planet 4) fusion of gas and dust at the center to form the sun

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

Atypical jetliner lands at a speed of 146 mi/h and decelerates at the rate of (10.4 mi/h)/s. if the jetliner travels at a constant speed of 146 mi/h for 1.5 s after landing before applying the brakes, what is the total displacement of the jetliner between touchdown on the runway and coming to rest?

What is part of a line has one endpoint and continues in one direction?