Find the voltage across the 15 Ω resistor. .
35 Ω
20 Ω
15 Ω
10 V

This is what i found on google “according to the collision theory, the following criteria must be met in order for a chemical reaction to occur: molecules must collide with sufficient energy, known as the activation energy, so that chemical bonds can break. molecules must collide with the proper orientation.” i hope this information you.