User Account

All Pages

At 105km/h, what is the rate of gasoline consumption in l/h

Assignment Help Physics
Reference no: EM13964589

The Otto-cycle of a certain car has a compression ratio r=8.5. The fuel economy rating of this car is 25 miles per gallon at 105km/h. Gasoline has a heat of combustion of 4.60x10^7J/kg, and its density is 740kg/m^3.

a. At 105km/h, what is the rate of gasoline consumption in L/h?

b. What is the theoretical efficiency of the engine? Use γ=1.40

c. How much power is the engine producing at 105km/h? Assume that the engine is operating at its theoretical efficiency, and give your answer in watts and in horsepower. By comparison, the engine of the car has a maximum power of 236hp.

I think I have part b. using the termal efficiency formula for the otto cycle(e=1-1/(rγ-1)). The other two parts I'm completely stuck on.

Reference no: EM13964589

Questions Cloud

Compute peter and amys income tax liability : Compute Peter and Amys income tax liability for the current year using Form 1040, Schedules A and B, and Form 8283, if necessary.
How much work must be done on the air to compress it : Suppose that 5gm of air is adiabatically compressed so as to raise its temperature from 20deg to 400 deg. How much work must be done on the air to compress it?
Estimate the distance to a lightning flash : You can estimate the distance to a lightning flash by counting the seconds that elapse between the time you see the flash and when you hear the accompanying thunder. The approximate distance in miles is obtained by dividing the time in seconds by 5..
Problem regarding the issuing shares : If you raise the capital you need to reopen by issuing shares, shareholders expect a 10% return. If you borrow, the bondholders require a 7% return. Should you open the mine? Show your work. You may answer the question in a spreadsheet. Upload you..
At 105km/h, what is the rate of gasoline consumption in l/h : How much power is the engine producing at 105km/h? Assume that the engine is operating at its theoretical efficiency, and give your answer in watts and in horsepower. By comparison, the engine of the car has a maximum power of 236hp.
How much closer to the source can you move before the sound : An intensity of 1.0;{rm W}/{rm m}^{2} is often used as the "threshold of pain". How much closer to the source can you move before the sound intensity reaches this threshold?
Explain the difference between variable costing : Explain the difference between variable costing and absorption costing net operating income in year 1. Also, explain why the two net operating incomes differ in year 2.
Calculate the resonant frequency : Assume that the outer ear canal is a cylincrical pipe 3 cm long, closed at one end by the eardum. Calculate the resonant frequency (fundamental, v1) of this pipe. Our hearing should be especially sensitive for frequencies near this resonance.
Cost advantage in the production of pencils : 1. Why do you think that the Chinese apparently have a cost advantage in the production of pencils? 2. Do you think that lobbying the U.S. government to impose antidumping duties on imports of pencils from China is a good way to protect American j..

Reviews

Write a Review

Physics Questions & Answers

  How tall is image of the photo on his retina

A torque of 60 Nm producing a counterclockwise rotation is applied to the wheel about its axle. A frictional torque of 10 nm acts at the axle.If the wheel is observed to accelerate at the rate of 2rad/s2 under the influence of these torques, what i..

  Evaluate what is the ratio of their masses

An object at rest is suddenly broken apart into twofragments by an explosion. What is the ratio of their masses

  What is angular velocity of the cockroach-disk system

What is  angular velocity of the cockroach-disk system

  How many turns does the solenoid have

When the current in a toroidal solenoid is changing at a rate of 0.0260 A/s, the magnitude of the induced emf is 12.6 mV. When the current equals 1.40 A, the average flux during each turn of the solenoid is 0.00285 Wb. How many turns does the solenoi..

  Relationship between sunspots and the temperature of earth

Explain why the absorption lines of an element have the same wavelengths as the emission lines of that element. Make up your own mnemonic to help you remember the sequence of spectral classes.

  Find additional resistance should be added in series

A power supply has an open-circuit voltage of 35.0 V and an internal resistance of 2.00 O. What additional resistance should be added in series

  Define what is the direction of the force

Ann was reaching up to grab a box of cereal that was on top of the refrigerator. She had extended her arm as well as stood on her tip-toes to reach the box. Which primary muscle allowed Ann to extend her elbow and which 2 primary muscles allowed h..

  Calculate the water pressure and velocity on the top floor

Water at a pressure of 13 atm, at street level, flows into a building at 3m/s through a 6 cm diameter pipe. The pipe tapers down to a 2 cm diameter by the top floor 50 m above. The density of water is 1,000 kg/m^3. Calculate the water pressure and ve..

  Who will have the greater momentum at the bottom

Scenario: You and a friend, who is twice your size, decide to slide down identical water slides at the same time, Who will have the greater momentum at the bottom

  The emf of a particular flashlight battery is 17 volts if

1. at a typical drift speed of 510-5 ms it takes an electron about 100 minutes to travel through one of your connecting

  Law of gravity-size of force of attraction between earth

Calculate, using Newton's law of gravity, the size of the force of attraction between the Earth and a mass of 5.0kg on the Earth. Data: Distance to the center of Earth from thesurface = 6370 km. Mass of Earth = 5.98*1024 kg.

  The intensity at a distance of 6 m from a source that is

the intensity at a distance of 6 m from a source that is radiating equally in all directions is 6.0 x 10-10 wm2. what

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd