The answer is D
The body of water contains more molecules; more molecules, more kinetic energy, which creates thermal energy.
The molecules are moving faster is the coffee, so the temperature is higher.
Work done can be computed using the formula:

Where:
W = work (J)
F = Force (N)
d = Distance (d)
Looking at the given, you know that you do not have a value for force, so you will have to solve for it.

Where:
F = Force
m = mass
a = acceleration
Because the object is being lifted, the acceleration will rely on gravity. Acceleration due to gravity is a constant 9.8 m/s^2. Let's list our given first:
F = ?
m = 100kg
a = 9.8m/s^2
Put that into our equation and solve:



Our force is then
980 N.
Now that we have force we can solve for Work. The given for work is as follows:
F= 980N
d = 1.4m
Put that into our formula and solve:



The work done is
1,372J.
Answer:
The constant movement of the soup in the pot is an example of convection.
Explanation:
Convection is the movement of hot and less-hot particles in a gas or liquid, transmitting heat with that motion. Therefore, the movement of soup that heats up the surface is an example of convection.
1. Virtual
2. Diverging
3. Refraction
4. Normal
5. Erect
6. Converging
7. Focal length
8. Axis
9. Reflection