Forces applied in
1 answer:
You might be interested in
Answer:
Work done, W = -318.19 Joules
Explanation:
It is given that,
Force acting on the object, F = 50 N
Distance covered by the force, d = 9 m
Angle between the force and the distance traveled,
The work done by an object is equal to the product of force and distance traveled. It is equal to the dot product of force and the distance. Mathematically, it is given by :
W = -318.19 Joules
So, the work done by the force is 318.19 Joules. The work is done in opposite to the direction of motion. Hence, this is the required solution.
Answer:
The water would have a change in the energy of 50 BTU
Explanation:
- Under the assumption that the piston-cylinder system is a closed system, then the conservation law of the system would be:
, where
is all the energy that goes into the system,
is all the energy that leaves the system and,
is the change of the energy of the system.
- For this case the energy that is feeded to the system is heat: 63 BTU.
- There is two ways that energy is leaving this system: 8 BTU of heat as losses through the side walls and, 5 BTU of work done by the vapor on the piston.
- Then the change of energy of the system is:
.