<span>The observation or measurement of physical properties of matter does not change its composition or its chemical nature. Other examples of physical properties include the infrared spectrum, attraction or repulsion to magnets, viscosity and opacity.</span>
The
balloon’s potential energy was transformed to kinetic energy as it drops.
Before
the balloon was drop it possessed potential energy but at the moment the
balloon was dropped the potential energy it possessed was transformed into
kinetic energy.
<span>Hope
this answer will be a good h<span>elp for you.</span></span>
The velocity is 4374.45 m/s.
I got the answer by using v=d/t.
20,000meters / 25min= 4,374.45 m/s.
If the compressor removes 500 j if the 700 the 200 j left would have Ben conducted through the refrigerator/200 j released into the room
