How high should a box of mass 20kg is lifted to store energy of 10,000 J? (g=10m/s)
1 answer:
Answer:
Height, h = 50 meters.
Explanation:
Given the following data;
Mass = 20kg
Potential energy = 10,000 J
Acceleration due to gravity, g = 10m/s²
To find the height of the box;
Potential energy can be defined as an energy possessed by an object or body due to its position.
Mathematically, potential energy is given by the formula;
Where,
- P.E represents potential energy measured in Joules.
- m represents the mass of an object.
- g represents acceleration due to gravity measured in meters per seconds square.
- h represents the height measured in meters.
Substituting into the formula, we have;
10000 = 20*10*h
10000 = 200h
Height, h = 10000/200
Height, h = 50 meters.
You might be interested in
Answer:
Explanation:
Given
mass of saturated liquid water
at specific volume is
(From Table A-4,Saturated water Temperature table)
Final Volume
Specific volume at this stage
Now we see the value and find the temperature it corresponds to specific volume at vapor stage in the table.