Complete Question
The complete question is shown on the first uploaded image
Answer:
The mass of the other block is 
Explanation:
From the question we are told that
Mass of the first block is 
The height is 
The time it takes it is
Generally from kinematic equation

Here u is the initial velocity which zero given that it was at rest initially
So

=> 
=> 
=> 
Generally from the diagram the resultant force due to the weight of the first object and the tension on the string is mathematically represented as

=> 
=> 
=> 
Generally from the diagram the resultant force due to the weight of the second object and the tension on the string is mathematically represented as

=> 
=> 
=> 
It transforms it to mechanical
Answer:
The two forces acting on a boat or some other floating object are buoyancy and gravity
When we form a right triangle connecting the edge of the knife to the center of the circle and the center of the knife to the center of the circle, the radius of the circle becomes the hypotenuse. Using the trigonometric function,
sin 60° = opposite / hypotenuse = 4 / hypotenuse
The value of the hypotenuse is 4.62 inches. Then, the diameter is twice this value which is 9.24 inches.
73.5 million million million metric tons. or 7.3477 x 10^22 kilograms