Final answer:
Archimedes' principle states that the buoyant force on an object equals the weight of the fluid displaced. The apparent weight of an object can be calculated by finding the difference between the actual weight and the buoyant force. In this case, the buoyant force and apparent weight cannot be calculated without knowing the density of the fluid and the volume of fluid displaced.
Step-by-step explanation:
Archimedes' principle states that the buoyant force on an object equals the weight of the fluid displaced. When an object is submerged in a fluid, it appears to weigh less, and this is called the apparent weight of the object. The apparent weight of an object can be calculated by finding the difference between the object's actual weight and the buoyant force.
In this case, if the mass of the object is 745 kg, we can use the formula:
Apparent weight = Actual weight - Buoyant force
The actual weight is given by the formula:
Actual weight = Mass of object x Acceleration due to gravity
Assuming the acceleration due to gravity is 9.8 m/s², we can substitute the values:
Actual weight = 745 kg x 9.8 m/s² = 7291 N
Now, the buoyant force can be calculated by using the formula:
Buoyant force = Density of fluid x Volume of fluid displaced x Acceleration due to gravity
Since the problem does not provide information about the density of the fluid or the volume of fluid displaced, we cannot calculate the exact buoyant force or apparent weight in this case.