A 1300 kg car moving at 20 m/s and a 900 kg car moving at 15 m/s in precisely opposite directions participate in a head-on crash. This event was a perfectly inelastic collision and we want to find the speed and direction of the cars after the impact. What do you do first? ;-; yes I now I'm quite lacking my intelligence for a freshman

You are about to open a container of soy milk but notice that there are instructions to “shake well before serving.” the soy milk is most likely a

Place several e-field sensors at a few points on different equipotential lines, and look at the relationship between the electric field and the equipotential lines. which statement is true? 1-at any point, the electric field is perpendicular to the equipotential line at that point, and it is directed toward lines of higher voltages. 2-at any point, the electric field is perpendicular to the equipotential line at that point, and it is directed toward lines of lower voltages. 3-at any point, the electric field is parallel to the equipotential line at that point.

Acid precipitation chemically weathering a 5.0-kg limestone rock . which coukd be the result ?