Question

На лугу площадью 1 га обитает 5 зайцев. Масса 1 зайца - 3 кг. Определите среднюю плотность травы на лугу, если зайцы употребляют в пищу 10% травы этого луга.

Answer 1

Ответ:

Полный ответ к вопросу :2.5 м^2

Answer 2

Calculation of Average Grass Density on the Meadow

To calculate the average grass density on the meadow, we need to consider the number of rabbits inhabiting the meadow and their consumption of grass.

Given: - Meadow area: 1 hectare (10,000 square meters) - Number of rabbits: 5 - Mass of each rabbit: 3 kg - Rabbits consume 10% of the grass on the meadow

To calculate the average grass density, we can follow these steps:

1. Calculate the total mass of the rabbits: - Total mass = Number of rabbits * Mass of each rabbit - Total mass = 5 * 3 kg = 15 kg

2. Calculate the mass of grass consumed by the rabbits: - Mass of consumed grass = Total mass * (Percentage of grass consumed / 100) - Mass of consumed grass = 15 kg * (10 / 100) = 1.5 kg

3. Calculate the remaining mass of grass on the meadow: - Remaining mass of grass = Total mass - Mass of consumed grass - Remaining mass of grass = 15 kg - 1.5 kg = 13.5 kg

4. Calculate the grass density on the meadow: - Grass density = Remaining mass of grass / Meadow area - Grass density = 13.5 kg / 10,000 square meters

Therefore, the average grass density on the meadow is 0.00135 kg/m².

Please note that this calculation assumes a uniform distribution of grass on the meadow and that the rabbits consume the grass evenly across the entire area.