Although objects can go through physical and changes, the amount of matter in those objects remains the same. this is known as the law of conservation of matter. matter can be broken into smaller pieces, dissolve in liquids, change physical states, and undergo other changes while still conserving its mass. which pairs of matter demonstrate the law of conservation? * a structure made of building blocks * the blocks of the same structure bundled in a pile with the extra binding material * a snowman * the melted remains of the same snowman * a lump of clay * the same lump broken into three pieces * 1 cup of water and one gram of salt, separated * the same cup of water with two grams of salt mixed in * a lump of clay * an identical lump added to the original * one apple * the same apple cut into slices submit an

What is the momentum of a 2 kg object moving at 15 meters per second

If water vapor with the mass of 35.0 grams is cooled and condensed into water in a closed system such as a closed glass jar, what is the mass of the water after the water vapor completely condenses? a) 34.5 grams b) 35.0 grams c) 35.5 grams d) the mass cannot be determined without knowing the volume

Momentum lab this lab uses a phet simulation. navigate to the phet momentum simulation. if you don’t see the image below when you click on the link, then you need to either enable adobe flash (click on the puzzle piece on your screen) or you need to install adobe flash (this is a free program). change the vectors to be momentum vectors only. they are yellow. make the mass of both balls the same. hit play and notice what happens to the momentum vectors before and after the collision. you might want to play the sim multiple times. click on restart or return balls to start over. to see numbers, check the show values box (inside the green box). red’s momentum vector before the collision is green’s momentum vector after the collision. question 1 options: shorter than longer than equal to question 2 (1 point) saved since green bounces off red, this must be an collision. question 2 options: explosion inelastic elastic question 3 (1 point) red transfers of its momentum to green during the collision. question 3 options: little all most none question 4 (4 points) why does red transfer all its momentum to green? back up your answer with information from the simulation. write at least 2 sentences.