Answer:
The two metals expand differently.
Explanation:
The bimetallic strip has two metal strips positioned like a bridge, these strips connect the electrical circuit to the heating system. When these strips are linear or "down" they allow the electricity to move through the circuit to the heating system to turn the heat on. When the strips are "up" the disconnect the electricity flow, thus turning the heating system off, thus the room becomes cool/cold.
Risks are only in a persons
Answer:
friction force
Explanation:
force of friction is opposite to the force applied it resist the motion
Average speed = total distance / total time.
That's 172 km / 5 hr = 34.4 km//hr
