Lana balanced an equation so that the result was 2c2h3br + 5o2 ? 4co2 + 2h2o + 2hbr. which most likely represents the starting equation?

Sort the images based on whether there's a force of attraction or repulsion between the magnets shown. attraction repulsion

In a heat engine if 1000 j of heat enters the system and the piston does 500j of work, what is the final internal energy of the system if the inital energy was 2000 j1.write the equation2.list out your known variables 3. plug the numbers into the equations4.solve 5.write your solution statement that includes initial energy and final energy added.

Ben (55kg) is standing on very slippery ice when junior (25kg) bumps into him. junior was moving at a speed of 8 m/s before the collision and ben and junior embrace after the collision. find the speed of ben and junior as they move across the ice after the collision. give the answer in m/s. describe the work you did to get the answer.