19. A girl is ice skating and has 35 kgm/s of momentum. After she bumps into a friend, she has 25 kgm/s of momentum. How much did she give her friend?

Which statement can best be concluded from the ideal gas law?

Mary is conducting an experiment on how pollution affects plant growth. how can she ensure that her data are reliable?

Precision can be defined as the o exact center of a data set. o reproducibility of a measured value. o correlation between two variables that are measured in a data set agreement between a measured value and an accepted value.