Question

Неопытный турист впервые приехал в США и взял напрокат автомобиль. Ему сказали, что этот автомобиль на одном галлоне топлива может проехать k=37.5 миль, а объем топливного бака - m=19 галлонов. При этом турист знает, что в одном галлоне 3.78 литра, а в одной миле - 1.6 км. 1) Каков расход топлива этого автомобиля в более привычных туристу литрах на 100 км пути; 2) На сколько километров пути хватит полного бака топлива; 3) Сколько времени займет этот путь при предельно допустимой скорости в n=55 миль/час Путь приведите с точностью до целых, остальные ответы приведите с точностью до сотых. по физике срочно !!!!!!даю 99 б !!!!!! очень нужно

Answer 1

1 галлон = 3,78 л
37,5 миль = 60 км
19 галлонов = 86,45 л
55 миль\час = 88,5 км\час

1. 3,78:60*100=6,3 л расход топлива на 100 км.
2. 86,45:3,78*60=1372,22 км хватит полного бака
3. 1372,22:88,49=15,5 часа займет весь путь

Answer 2

Calculating Fuel Consumption in Liters per 100 Kilometers

To calculate the fuel consumption of the car in liters per 100 kilometers, we need to convert the given values into the appropriate units and use the following formula:

Fuel Consumption (L/100km) = (Fuel Consumption (gal/mile) * Conversion Factor (km/mile)) / Conversion Factor (L/gal)

Given: - Fuel Consumption (gal/mile) = k = 37.5 miles/gallon - Conversion Factor (km/mile) = 1.6 km/mile - Conversion Factor (L/gal) = 3.78 L/gallon

Using the formula, we can calculate the fuel consumption in liters per 100 kilometers:

Fuel Consumption (L/100km) = (37.5 miles/gallon * 1.6 km/mile) / 3.78 L/gallon

Calculating this expression will give us the fuel consumption in liters per 100 kilometers.

Calculating the Range of the Car

To calculate the range of the car, we need to multiply the fuel tank capacity by the fuel consumption per kilometer. The formula is as follows:

Range (km) = Fuel Tank Capacity (gal) * Fuel Consumption (km/gal)

Given: - Fuel Tank Capacity (gal) = m = 19 gallons - Fuel Consumption (km/gal) = 1 / (Fuel Consumption (gal/mile) * Conversion Factor (km/mile))

Using the formula, we can calculate the range of the car in kilometers:

Range (km) = 19 gallons * (1 / (37.5 miles/gallon * 1.6 km/mile))

Calculating this expression will give us the range of the car in kilometers.

Calculating the Travel Time at Maximum Speed

To calculate the travel time at the maximum speed, we need to divide the distance traveled by the maximum speed. The formula is as follows:

Travel Time (hours) = Distance (miles) / Maximum Speed (miles/hour)

Given: - Maximum Speed (miles/hour) = n = 55 miles/hour

Using the formula, we can calculate the travel time at the maximum speed:

Travel Time (hours) = Distance (miles) / 55 miles/hour

Calculating this expression will give us the travel time in hours.

Calculation Results

Let's calculate the values based on the given information:

1) Fuel Consumption in Liters per 100 Kilometers: - Fuel Consumption (L/100km) = (37.5 miles/gallon * 1.6 km/mile) / 3.78 L/gallon - Fuel Consumption (L/100km) = 15.72 L/100km

2) Range of the Car: - Range (km) = 19 gallons * (1 / (37.5 miles/gallon * 1.6 km/mile)) - Range (km) = 19 * (1 / (37.5 * 1.6)) km - Range (km) = 19 * (1 / 60) km - Range (km) = 0.3167 km

3) Travel Time at Maximum Speed: - Travel Time (hours) = Distance (miles) / 55 miles/hour - Travel Time (hours) = Distance (miles) / 55 - Since the distance is not provided, we cannot calculate the travel time accurately.

Please note that the travel time calculation requires the distance traveled, which is not provided in the question. Without the distance, we cannot accurately calculate the travel time at the maximum speed.