Not all the thermal energy from the hot object transferred to the cold water. Suggest ways that you could have improved your experimental design to increase the transfer of thermal energy from the hot object to the cold water.

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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.

current and voltage can both be different in different parts of a circuit so it matters where you place the ammeter and voltmete