Determine the gain in the potential energy when a 8.0 kg box is raised 17.2 m.

Explanation:

The potential energy of a body can be found by using the formula

PE = mgh

where

m is the mass

h is the height

g is the acceleration due to gravity which is 10 m/s²

From the question we have

PE = 8 × 10 × 17.2

We have the final answer as

Hope this helps you

if the thermos has a vacuum innner, then heat through conv currents and conduction are reduced = vacuum flask