Question

28 3. Грузовой электропоезд с двигателем Р4 МВт движется со скоростью 72 км/ч. Определите расход электрической энергии за 800 км пути?

Answer 1

Ответ:

Объяснение:..........

Answer 2

Calculating Electrical Energy Consumption for a Freight Electric Train

To calculate the electrical energy consumption for the given scenario, we can use the formula:

Energy (kWh) = Power (MW) × Time (h)

Given: - Power of the electric train's engine (P) = 4 MW - Speed of the train (v) = 72 km/h - Distance traveled (d) = 800 km

First, we need to calculate the time taken for the train to cover the given distance.

Calculating Time Taken

We can use the formula Time (h) = Distance (km) / Speed (km/h) to find the time taken.

Time (h) = 800 km / 72 km/h Time (h) ≈ 11.11 hours

Now, we can use the calculated time to find the electrical energy consumption.

Calculating Electrical Energy Consumption

Energy (kWh) = Power (MW) × Time (h) Energy (kWh) = 4 MW × 11.11 h Energy (kWh) ≈ 44.44 MWh

Therefore, the electrical energy consumption for the freight electric train over a distance of 800 km is approximately 44.44 MWh.