What is the thermal energy of an object a. the total kinetic and potential energies of its particles b. the total kinetic energy of its particles c. the total potential energy of its particles d. its total temperature

The thermal energy of an object is defined as the total translational kinetic energy of the particles that make it up.

The answer is B.

answer: the exterior temperature of commercial jet planes as they leave the stratosphere and return to the ground increases steadily.

explanation:

the lower most layer of atmosphere is troposphere which extends from 0 to 12 km above the surface of the earth. the temperature initially decreases as distance is increased from the earth's surface. commercial jets fly in lower part of the stratosphere. the stratosphere extends upto 50 km. the temperature in stratosphere starts rising again due to presence of ozone which traps the uv rays.

thus, when the planes leave the stratosphere and return to the ground, the exterior temperature increases steadily.

wavelegth as in spectrum red oygbiv