Question

Помогите пожалуйста! Никита снимает котёнка с дерева. Для этого он использует подвижный блок массой 22 кг и корзинку массой 11 кг. Известно, что масса котёнка равна 44 кг. Найди КПД блока. Запиши в поле ответа верное число, округлив до целых. Помогите пожалуйста! Дам 20 баллов! ​

Answer 1

Ответ:

точно также написал ноль ответов

Объяснение:

Answer 2

Calculation of Efficiency (КПД) of the Block

To find the efficiency (КПД) of the block, we need to know the work input and the work output of the system. In this case, the work input is the gravitational potential energy gained by lifting the block and the kitten, and the work output is the work done by the block in lifting the kitten.

The formula for efficiency (КПД) is:

КПД = (Work output / Work input) * 100%

To calculate the efficiency, we need to calculate the work input and work output.

Calculation of Work Input

The work input is the gravitational potential energy gained by lifting the block and the kitten. The formula for gravitational potential energy is:

Potential energy = mass * gravity * height

In this case, the mass of the block is 22 kg, the mass of the kitten is 44 kg, and the height is the height of the tree from which the kitten is being lifted.

Unfortunately, the height of the tree is not provided in the question, so we cannot calculate the exact value of the work input. Without the height, we cannot proceed with the calculation of the efficiency (КПД) of the block.

Please provide the height of the tree so that we can calculate the work input and the efficiency (КПД) of the block accurately.