Answer:
Black Final: 38; Change: 16
White Final: 24; Change: 2
Green Final: 29; Change: 7
Red Final: 31: Change: 9
Blue: 33: Change: 11
Explanation:
Black Final: 38
Black Change: 38 - 22 = 16
White Final: 24
White Change: 24 - 22 = 2
Green Final: 29
Green Change: 29 - 22 = 7
Red Final: 31
Red Change: 31 - 22 = 9
Blue Final: 33
Blue Change: 33 - 22 = 11
Answer:
3.32 m/s
Explanation:
From the law of conservation of energy, the sum of mechanical and kinetic energy should be equal to the 10 J given. Potential energy is given by mgh where m is mass, g is acceleration due to gravity and h is the height. For this case, 
and l is string length, given as 2 m, \theta is given as 50 degrees. Kinetic energy is given by 
and it is this velocity that is unknown.
I cannot read please show closer
Hello!
I included a link that might help you in terms of how the problem is broken down.
https://www.slader.com/discussion/question/a-tank-is-shaped-like-an-upside-down-square-pyramid-with-base-of-4m-by-4m-and-a-height-of-12m-how-fa/
However, the answer is:
The height increases at 3/2 m/sec
