A 25-tons freight car ran into another freight car of the same mass. The first moves at 2.7m/s and the second moved towards the first at the speed 0.5 m/s. If the cars were coupled. together after the collision, what was their final speed?

Drag each item into the proper state of matter category.

According to valence bond theory, which orbitals overlap in the formation of the bond in hf according to valence bond theory, which orbitals overlap in the formation of the bond in hf 2s on h and 2p on f 1s on h and 2s on f 1s on h and 1p on f 1s on h and 2p on f 1s on h and 3p on f

What happens when a rubber rod is rubbed with a piece of fur?