Question

a cars engine cools during operation using a radiator filled with coolant. which statement best explains how the radiator helps the engine maintain a safe operating temperature?
the radiator prevents any thermal energy from leaving the engine.
the radiator transfers thermal energy from the coolant to the air, keeping the engines energy in balance.
the radiator generates additional thermal energy to keep the engine warm.
the radiator increases thermal energy inside the engine by trapping heat.

Explanation:

A car radiator's main function is to transfer thermal energy from the hot coolant to the air, which helps in maintaining the engine's safe operating temperature. It doesn't increase thermal energy inside the engine, generate additional thermal energy, or prevent thermal energy from leaving the engine.

Answer:

The radiator transfers thermal energy from the coolant to the air, keeping the engine's energy in balance.