1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
jasenka [17]
3 years ago
11

To reduce the drag coefficient and thus improve the fuel efficiency of cars,the design of side rearview mirrors has changed dram

atically in recent decades from asimple circular plate to a streamlined shape. Determine the amount of fuel and moneysaved per year as a result of replacing a 15-cm-diameter flat mirror by one with ahemispherical back. Assume the car is driven 25,000 km a year at an average speedof 95 km/hr. Take the density and price of gasoline to be 0.75 kg/L and $0.90/L,respectively; the heating value of gasoline to be 44,000 kJ/kg and the overall efficiencyof the engine to be 30 percent.
Engineering
1 answer:
marissa [1.9K]3 years ago
4 0

Answer:

Amount of fuel used per year is supposed to be 34150 KJ/kg

You might be interested in
I WILL GIVE 20 POINTS!!
Alex777 [14]

Answer:

Use a resume header

Explanation:

Create a Summary

Research industry, employer keywords

there are some hints okay

5 0
3 years ago
Read 2 more answers
Discuss typical advantages and disadvantages of an irrigation system?
trapecia [35]
Advantages include low costs and minimal labor.Water stays in the root zone, and foliage stays dry. Drawbacks to surface irrigation include potential overwatering and wasteful runoff.
4 0
3 years ago
How do we find percentage error in measuring voltage across a resistor​
Black_prince [1.1K]

Answer:

  use the percentage error relation

Explanation:

The percentage error in anything is computed from ...

  %error = ((measured value)/(accurate value) -1) × 100%

__

The difficulty with voltage measurements is that the "accurate value" may be hard to determine. It can be computed from the nominal values of circuit components, but there is no guarantee that the components actually have those values.

Likewise, the measuring device may have errors. It may or may not be calibrated against some standard, but even measurement standards have some range of possible error.

6 0
3 years ago
Read 2 more answers
Before a rotameter can be used to measure an unknown flow rate, a calibration curve of flow rate versus rotameter reading must b
allochka39001 [22]
This statement is b which is true: hope this helped
6 0
3 years ago
Which factor has the most significant impact in design?
wariber [46]

D) cost


The fund available for a project is the first factor to be considered to ensure that the project comes to reality and serve it’s purpose

3 0
2 years ago
Other questions:
  • In a four bar mechanism, L, is a fixed link; L2 is driver crank; L3 is coupler and L4 is follower crank. L=27 cm, L3 =5 cm and L
    5·1 answer
  • Air enters a tank through an area of 0.2 ft2 with a velocity of 15 ft/s and a density of 0.03 slug/ft3. Air leaves with a veloci
    5·1 answer
  • Given a series of numbers as input, add them up until the input is 10 and print the total. Do not add the final 10. For example,
    7·1 answer
  • Define, in words the following i relative humidity ii) dew point temperature
    7·1 answer
  • Air initially at 120 psia and 500o F is expanded by an adiabatic turbine to 15 psia and 200o F. Assuming air can be treated as a
    10·1 answer
  • What is the ideal cooling system for low horsepower motor? For example1hp motor
    9·1 answer
  • Plateau Creek carries 5.0 m^3 /s of water with a selenium (Se) concentration of 0.0015 mg/L. A farmer withdraws water at a certa
    12·1 answer
  • Why Elastic Modulus is important and on what it depends?
    12·1 answer
  • Design for human-fit strategies include:
    12·1 answer
  • A bakery wants to determine how many trays of doughnuts it should prepare each day. Demand is normal with a mean of 15 trays and
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!