Answer:
Melting tin and then cooling it into a mold
Explanation:
When you melt something, and when it cools it returns to its physical state, therefore the physical changes are reversible. For example, take chocolate. When chocolate melts its liquid, then when it's in a colder situation it becomes solid again and so on, the changes are reversible.
Ohm's law states that the electrical current (I) flowing in an circuit is proportional to the voltage (V) and inversely proportional to the resistance (R). ... Similarly, increasing the resistance of the circuit will lower the current flow if the voltage is not changed..hope it helps out
Answer:
Option A is correct.
The total distance is 105 kilometers, and the total displacement is 15 kilometers east.
Explanation:
- Distance is a scalar quantity, so it doesn't have anything to do with direction.
- Distance only adds up the magnitude. so,
Distance = 60 + (60-15) = 60+ 45 = 105 km
- Displacement is a vector quantity,it should be calculated by concerning truck's direction too.
- Considering the direction and magnitude,
Displacement = +60(E) -45(W) = 15 km East
That would be crazy but the world already has certain pieces of matter on it
