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Ivan
3 years ago
12

You are traveling on a plane trip from Washington, D.C. to Cleveland, Ohio and the plane uses 1,260 MJ/passenger trip. If you ma

de the trip by car it would take 18 gallons/passenger trip. There are 142 MJ in a gallon of kerosene, a type of jet fuel. How many gallons of kerosene does it take to make the trip by plane?
Physics
1 answer:
forsale [732]3 years ago
3 0

Answer:

8.87 gallons of kerosene

Explanation:

Step 1: Given and required data

  • Energy to travel by plane per passenger trip: 1,260 MJ/passenger trip
  • Energy per gallon of kerosene: 142 MJ/gal

Step 2: Calculate how many gallons of kerosene it takes to make the trip by plane

We can calculate the amount of kerosene required by combining the factor provided in Step 1.

1 gal/142 MJ × 1,260 MJ/passenger trip = 8.87 gal/passenger trip

8.87 gallons of kerosene are required to make the trip by plane.

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Answer:

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Explanation:

We are given

Frequency, f=0.100Hz

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Wavelength, \lambda'=0.32m

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We know that

Speed,v=\lambda f

Using the formula

Average speed,v=15\times 0.1=1.5m/s

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Using the formula

f=\frac{30}{0.32}

f=93.75Hz

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