Three resistors are placed in series. They have the following resistances: R4 = 20 ohms, R2 = 20 ohms, R = 10 ohms. What current would be moved through this circuit by a 5-V power supply? Can you please show your work ???
1.0 A
0.10 A
250 A
25 A

the device is called “ rocket engine”

an electric circuit

molecules are free to separate from each other and will take on the shape of the container. molecules move completely at random and high speeds. they vibrate in a fixed position and do not move around much. molecules expand to the edge of their container.

prndulum needs thread, weight clock to time swings