The directions arrow<span> is </span>always<span> going the wrong </span>way<span>.</span>
A. The particles are packed more tightly in materials with more density which causes the vibrations to bounce of the partials more rapidly which makes them go faster
Answer: a switch can do A, B and E
Explanation:
As the speed is a scalar quantity as it has the only magnitude in it. Therefore, the average speed is also stated as a scalar quantity.
Hence, the correct answer is (B)
Answer:
a. chemical reaction
Explanation:
In both a dry and wet cell battery, electric currents are produced through chemical reactions.
Both cells are together called electrochemical cells.
- In these cells, chemical reactions produce an electric current.
- They are devices that converts chemical energy into electrical energy
- The reactions here are spontaneous redox reactions.
- This causes the current to flow on their own in the circuit.
