Katelyn runs along the aisle of a train that moves at 8 m/s. Her speed relative to the floor is 3 m/s. Her speed relative to an observer at rest on the ground is

C) either depending on her running direction

Explanation:

The following information is given in the question

katelyn runs at 8 m/s

her speed relative to the floor is 3 m/s

Based on the above information

Now her speed relative with respect to an  observe for the rest on the ground would be based on her running direction that means in which direction she is running

Therefore the option c is correct

Mix

Explanation:

A battery has two electrodes, at one end it has the anode and the other end has the cathode. Electrons travel through the circuit from the anode (negative) to the cathode (positive), and this is the driving force that provides electricity to flow through circuits.

The anode needs to have a low electron affinity because it needs to readily release electrons, and the cathode needs to have a high electron affinity because it needs to readily accept electrons.