The change in Potential energy of the cat is 176.4 J.
<h3 /><h3>Potential Energy:</h3>
This is the energy due to the position of a body. The S.I unit is Joules (J)
The formula for change in potential energy.
<h3 /><h3>Formula:</h3>
- ΔP.E = mg(H-h).............. Equation 1
<h3>Where:</h3>
- ΔP.E = Change in potential energy
- m = mass of the cat
- g = acceleration due to gravity
- H = First height
- h = second height.
From the question,
<h3>Given:</h3>
- m = 15 kg
- H = 2.5 m
- h = 1.3 m
- g = 9.8 m/s²
Substitute these values into equation 1
- ΔP.E = 15×9.8(2.5-1.3)
- ΔP.E = 15×9.8×1.2
- ΔP.E = 176.4 J.
Hence, The change in Potential energy of the cat is 176.4 J
Learn more about Potential energy here: brainly.com/question/1242059
 
        
             
        
        
        
Answer:

Explanation:Newton.s law of cooling states that the rate of cooling of an object is proportional to the difference between its own temperatures and temperature of its surroundings. Mathematically,
![\frac{dQ}{dt} =-hA [T(t)-T(s)]\\](https://tex.z-dn.net/?f=%5Cfrac%7BdQ%7D%7Bdt%7D%20%3D-hA%20%5BT%28t%29-T%28s%29%5D%5C%5C)

where  is the heat transfer
 is the heat transfer
 is heat transfer coefficient
 is heat transfer coefficient
 is the heat transfer surface area
 is the heat transfer surface area
 is the temperature of the object's surface
 is the temperature of the object's surface
 is the temperature of the surroundings
 is the temperature of the surroundings
 
        
             
        
        
        
It changes because force is somewhat like pressure. Force is continuously against the object so as a result, speed changes .