You open the fridge and the milk is sour (spoiled). What has happened?
O Observation of an extensive property
O Observation of a physical property
O A physical change.
O Achemical change

What is the ima of the 1 st class lever in the graphic given? 2 3 0.5

Imagine that you push on a large rock. at what point does your effort change the rock’s mechanical energy?

Aroller coaster is traveling at 13 mi./s when you purchase a hill that is 400 m long and down the hill exonerate at 4.0 m/s squared what is the final velocity of the posterior found your answer to the nearest number