Answer:
An isothermal process is a change of a system, in which the temperature remains constant: ΔT = 0.
Explanation:
:)
 
        
             
        
        
        
Answer: 0.087 inches
Explanation:
This problem can be solved applying the <u>Rule of three</u>, which is a  mathematical rule to find out an amount that is with another quantity given in the same relation as other two also known.
In this sense, the actual diameter of the Sun is 1,391,020 km and the actual diameter of the Earth is 12,742 km. 
Now, applying the <u>Rule of three:</u>
<u />
Sun 1,391,020 km ------ 9.5 inches
Earth 12,742 km --------- ? inches

 
 
Therefore:
If the sun is scaled down to 9.5 inches in diameter, the earth would be about <u>0.087 inches </u>in diameter.
 
        
             
        
        
        
Answer:
480N
Explanation:
A ball is moving a speed of 8 there fore it had to be add force opposite direction to the ball if it takes to rest. There for ball is subjected to deceleration. First we can find the deceleration 
V = U + at
0 = 8 + a×10
a= 0.8 m /s²
Then we can apply newton's 2nd law to determine the force acted by legatos 
F= ma
F= 600×0.8
   = 480 N
 
 
        
             
        
        
        
Answer:
12.46 joules
Explanation:
The formula of potential energy is:

where m is mass, g is gravitational force (9.8 m/s^2) and h is height.
- Mass is given to be 2.3 grams.
- Gravitational Force is defined as 9.8 m/s^2.
- Height is given as 553 meters.
However, mass must be in kilograms (kg) unit so we will be converting the gram to kilogram:
We know that a gram equals to 0.001 kg so 2.3 grams will equal to 2.3 * 0.001 = 0.0023 kg.
Therefore, substitute known information in the formula of potential energy:

Therefore, the potential energy is 12.46 joules.
 
        
             
        
        
        
This unique behavior of water is the fact that it expands while being cooled from 4 degrees Celsius to 0 degrees Celsius. In most substances, the effect of cooling is contraction, and this is true for water as well, except in the given temperature range.