A car driving at 72 mph and driving at 81% of rated power and has an...
A car driving at 72 mph and driving at 81% of rated power and has an overall efficiency of 0.33.Total rated power of the engine is 50 kw.Please estimate miles per gallon of this car if heating value of gasoline is 135000kj/gallon.
Homework Answers
Add Answer to:
A car driving at 72 mph and driving at 81% of rated power and
has an...
Gas mileage actually varies slightly with the driving speed of a car (as well as with...
Gas mileage actually varies slightly with the driving speed of a car (as well as with highway vs. city driving). Suppose your car averages 31 miles per gallon on the highway if your average speed is 54 miles per hour, and it averages 29 miles per gallon on the highway if your average speed is 69 miles per hour. Answer parts (a) and (b) below. a. What is the driving time for a 3000-mile trip if you drive at an...
At full power, how long would it take for the car to accelerate from 0 to 64.0 mph? Neglect...
The engine in an imaginary sports car can provide constant power to the wheels over a range of speeds from 0 to 70 miles per hour (mph). At full power, the car canaccelerate from zero to 32.0 mph in time 1.50 s.
(25pts) A car has a drag coefficient of CD=0.3 The area of the car is 24ft2....
(25pts) A car has a drag coefficient of CD=0.3 The area of the car is 24ft2. The weight of the car is 3000lbf. The car is travelling at V=75mph through air at sea level (ρ=0.0024 slug/ft3). Treat the rolling friction as μ=0.015. Model the power needed to move the car per the lecture as: . Watch your units. What is the power needed to travel at 75mph, in units of horsepower (hp)? How long does it take to travel one...
A 3000 kg car goes from 0 to 70 miles per hour in 6 seconds. Assume...
A 3000 kg car goes from 0 to 70 miles per hour in 6 seconds. Assume all the work supplied by the engine goes into increasing the kinetic energy of the car. 1. If the engine is purely electrical (and 100% efficient), determine the electrical work supplied in kW.h by the engine battery. A kW.h of electricity costs about 25 cents (this is just for your information). (kWh) 2.If the engine is a gasoline powered engine, determine the fuel consumed...
7. Bastien, Inc, has been manufacturing small automobiles that have averaged 50 miles per gallon of...
7. Bastien, Inc, has been manufacturing small automobiles that have averaged 50 miles per gallon of gasoline in highway driving. The company has developed a more efficient engine for its small cars and now advertises that its new small cars average more than 50 miles per gallon in highway driving. An independent testing service road-tested 36 of the automobiles. The sample showed an average of 51.5 miles per gallon with a standard deviation of 6 miles per gallon. Using the...
Do number 53 please The motor of a power saw is rated 72% efficient. If 1.8...
Do number 53 please
The motor of a power saw is rated 72% efficient. If 1.8 hp are required to cut a particular piece of lumber, what is the current drawn from a 120 V supply? What is the efficiency of a dryer motor that delivers 0.81 hp when the input current and voltage4 are 4 a and 220 v, respectively? A stero system drawn 1.8 A at 120 V, The audio output power is 50 W. a. How much...
QUESTION 5 The manufacturer of a new compact car claims that the car will average at...
QUESTION 5
The manufacturer of a new compact car claims that the car will
average at least 35 miles per gallon in general highway
driving.
For 100 test runs, the car averaged 35.5 miles per gallon with a
standard deviation of 4 miles per gallon.
Suppose that the manufacturer tests the following
hypotheses:
Consider the 1% significance level. What is the power of the
test if the actual average fuel efficiency is 36 miles per
gallon?
a.
88.877%
b.
99.086%...
Stan Moneymaker has been informed of a major automobile manufacturer?s plan to conserve on gasoline consumption...
Stan Moneymaker has been informed of a major automobile manufacturer?s plan to conserve on gasoline consumption through improved engine design. The idea is called engine displacement, and it works by switching from 8-cylinder operation to 4-cylinder operation at approximately 40 miles per hour. Engine displacement allows enough power to accelerate from a standstill and to climb hills while also permitting the automobile to cruise at speeds over 40 miles per hour with little loss in driving performance. The trade literature...
While driving your rental car on your trip to Europe, you find that you are getting...
While driving your rental car on your trip to Europe, you find that you are getting 13 kilometers per liter of gasoline. What does this correspond to in miles per gallon?
Ahmadi, Inc. has been manufacturing small automobiles that have averaged 50 miles per gallon of gasoline...
Ahmadi, Inc. has been manufacturing small automobiles that have averaged 50 miles per gallon of gasoline in highway driving. The company has developed a more efficient engine for its small cars and now advertises that its new small cars average more than 50 miles per gallon in highway driving. An independent testing service road-tested 64 of the automobiles. The sample showed an average of 51 miles per gallon with a standard deviation of 4 miles per gallon. You want to...
Gas mileage actually varies slightly with the driving speed of a car (as well as with highway vs. city driving). Suppose your car averages 31 miles per gallon on the highway if your average speed is 54 miles per hour, and it averages 29 miles per gallon on the highway if your average speed is 69 miles per hour. Answer parts (a) and (b) below. a. What is the driving time for a 3000-mile trip if you drive at an...
7. Bastien, Inc, has been manufacturing small automobiles that have averaged 50 miles per gallon of gasoline in highway driving. The company has developed a more efficient engine for its small cars and now advertises that its new small cars average more than 50 miles per gallon in highway driving. An independent testing service road-tested 36 of the automobiles. The sample showed an average of 51.5 miles per gallon with a standard deviation of 6 miles per gallon. Using the...
Do number 53 please
The motor of a power saw is rated 72% efficient. If 1.8 hp are required to cut a particular piece of lumber, what is the current drawn from a 120 V supply? What is the efficiency of a dryer motor that delivers 0.81 hp when the input current and voltage4 are 4 a and 220 v, respectively? A stero system drawn 1.8 A at 120 V, The audio output power is 50 W. a. How much...
QUESTION 5
The manufacturer of a new compact car claims that the car will
average at least 35 miles per gallon in general highway
driving.
For 100 test runs, the car averaged 35.5 miles per gallon with a
standard deviation of 4 miles per gallon.
Suppose that the manufacturer tests the following
hypotheses:
Consider the 1% significance level. What is the power of the
test if the actual average fuel efficiency is 36 miles per
gallon?
a.
88.877%
b.
99.086%...
Stan Moneymaker has been informed of a major automobile manufacturer?s plan to conserve on gasoline consumption through improved engine design. The idea is called engine displacement, and it works by switching from 8-cylinder operation to 4-cylinder operation at approximately 40 miles per hour. Engine displacement allows enough power to accelerate from a standstill and to climb hills while also permitting the automobile to cruise at speeds over 40 miles per hour with little loss in driving performance. The trade literature...
Most questions answered within 3 hours.
-
calculate the oxidation state of carbons C18H36O2 and
C18H36018
and then calculated the number of electrons...
asked 12 minutes ago -
Please respond to each of the below questions in a minimum of 5
well written paragraphs...
asked 5 minutes ago -
On January 1, Year 1, Brown Co. issued bonds with a face value
of $115,000, a...
asked 11 minutes ago -
It is better to optimize alpha by using trial and error methods
or by using methods...
asked 19 minutes ago -
An urn contains 39 red, 17 white and 30 blue marbles. A child
selects two marbles...
asked 21 minutes ago -
A student conducting this experiment weighs out 2.80 g of
CoCl2.6H2O.
For this part you will...
asked 29 minutes ago -
A cube, 100.0m on a side, has a total charge of 12.0 nC
distributed uniformly on...
asked 19 minutes ago -
Let's consider that two hockey players with equal mass, moving
with the same speed of 10...
asked 21 minutes ago -
Find the mid-range for the given sample data. Listed
below are the amounts of time (in...
asked 37 minutes ago -
If one wants to airlift a “thanksgiving’s” turkey (mass=3kg)
using a balloon. What would be the...
asked 34 minutes ago -
An institute reported that 63% of its members indicate that
lack of ethical culture within financial...
asked 36 minutes ago -
A proposal to your local city council in which you propose how
to use the money...
asked 45 minutes ago