Homework

Homework Questions? Ask a Tutor for Answers ASAP

Ask an Expert,
Get an Answer ASAP!

Homework
This answer was rated:

An airplane flies due west at 150km/h with respect to the ...

An airplane flies due west...
An airplane flies due west at 150km/h with respect to the air. There is a wind blowing at 95 km/h to the northeast relative to the ground. What is the plane's speed with respect to the ground?
Show More
Show Less
Ask Your Own Homework Question
Answered in 26 minutes by:
9/23/2007
Scott
Scott, MIT Graduate
Category: Homework
Satisfied Customers: 17,710
Experience: MIT Graduate (Math, Programming, Science, and Music)
Verified

Welcome back!

You can think of this as a Pythagorean Theorem problem. The hypotenuse is the unknown. One short leg is the 150km/h minus the east component of the wind. The other short leg is the north component of the wind:

east comp: 95*cos(45) -- so the total leg is 150-95*cos(45)

north comp: 95*sin(45)

The magnitude of the velocity will be:

sqrt((150-95*cos(45))^2 + (95*sin(45))^2)

= 106.64 km/h

Let me know if you have any questions,

Scott

Scott
Scott, MIT Graduate
Category: Homework
Satisfied Customers: 17,710
Experience: MIT Graduate (Math, Programming, Science, and Music)
Verified
Scott and 87 other Homework Specialists are ready to help you
Ask your own question now
Customer reply replied 10 years ago
Reply to Scott's Post: Can you also answer this one and i will add another $10.
You walk 20m south and 20m eas. Find the magnitude and direction of the resultant displacement both graphically and algebraically. Answer is 28.28 M what is the degrees counterclockwise from east?

Hi there!

I can help you with that as well.

The magnitude is sqrt(20^2 + 20^2) = 28.28 m

The direction is arctan(-20/20) = -45 degrees (45 degrees south of east) (but that is the same as 315 degrees counterclockwise from east).

Graphically:

graphic

Let me know if you have any questions,

Scott

Ask Your Own Homework Question
Customer reply replied 10 years ago
Reply to Scott's Post: last one and i already accepted the last two and added in a bonus..
A weather station releases a balloon that rises at a constant 16m/s relative to the air, but there is a wind blowing at 6.0 m/s toward the west. What is the magnitude and direction of the velocity of the balloon? answer 17.07 m/s   bu how many degrees above the horizontal?

Hi again! As far as I can tell, the first answer was accepted and I got the bonus. Thanks!

The magnitude is another Pythagorean Triangle:

sqrt(16^2 + 6^2) = 17.08 m/s

The angle is given by the arctangent:

angle = arctangent(y/x)

arctan(6/16) = 20.56 degrees

Let me know if you have any questions,

Scott

Ask Your Own Homework Question
Customer reply replied 10 years ago
That is what i had as well but it came up incorrect. Any other suggestions for that one.. the rest were all right.. does it change with the "above the horizontal"?

Could it be a rounding problem? For example, have you tried it with 20.6 degrees or 20.556 degrees?

-Scott

Ask Your Own Homework Question
Customer reply replied 10 years ago
that didn't work either so maybe there is an error in the program.. let me know if you can think of anything else otherwise i will still accept this one because i had the same answer as well and appreciate your help..
This answer is protected
Would you like to ask this question?
If you've already paid for this answer, simply Login.
Scott
Scott, MIT Graduate
Category: Homework
Satisfied Customers: 17,710
Experience: MIT Graduate (Math, Programming, Science, and Music)
Verified
Scott and 87 other Homework Specialists are ready to help you
Ask your own question now
Customer reply replied 10 years ago
that did not work either.. i am not sure what they are looking for..

Hmmm.... that is strange. Is there anyone you can contact to see if there is a bug in the program?

-Scott

Ask Your Own Homework Question
Customer reply replied 10 years ago
i will ask the teacher tom.. thanks for your help.. i will accept the last one as well.. thanks again
Ask Scott Your Own Question
Scott
Scott
Scott, MIT Graduate
Category: Homework
Satisfied Customers: 17,710
17,710 Satisfied Customers
Experience: MIT Graduate (Math, Programming, Science, and Music)

Scott is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here.

DianeDallas, TX

< Previous | Next >

Meet the Experts:

LogicPro

LogicPro

Engineer

5,731 satisfied customers

Expert in Java C++ C C# VB Javascript Design SQL HTML

Manal Elkhoshkhany

Manal Elkhoshkhany

Tutor

4,551 satisfied customers

More than 5000 online tutoring sessions.

Linda_us

Linda_us

Finance, Accounts & Homework Tutor

3,138 satisfied customers

Post Graduate Diploma in Management (MBA)

Chris M.

Chris M.

M.S.W. Social Work

2,636 satisfied customers

Master's Degree, strong math and writing skills, experience in one-on-one tutoring (college English)

F. Naz

F. Naz

Chartered Accountant

2,161 satisfied customers

Experience with chartered accountancy

Bizhelp

Bizhelp

CPA

1,887 satisfied customers

Bachelors Degree and CPA with Accounting work experience

Seanna

Seanna

Tutor

1,781 satisfied customers

3,000+ satisfied customers, all topics, A+ work

< Previous | Next >

Related Homework Questions
For LogicPro only: Design a C++ program in which a class
For LogicPro only: Design a C++ program in which a class should manage the free and allocated space. You should use a dynamic node implementation of link list to implement both lists for this assignme… read more
LogicPro
LogicPro
Engineer
Bachelor of Technology
5,731 satisfied customers
You can apply several different worksheets themes from which
You can apply several different worksheets themes from which tab? A.Insert, B. Home, C.File, or D. Page layout! Its not B What would be a situations in which you could use an excel chart to present yo… read more
GLENN
GLENN
Master of Mathematics
343 satisfied customers
Just wanted to see if you would be interested in helping me
Hello Again! Just wanted to see if you would be interested in helping me with two more programs? I will attach the Program outlines and the Word documents. Please let me know if you would like to help… read more
George Sibiya
George Sibiya
PhD
217 satisfied customers
6. How many worksheets display in the Excel window when you
6. How many worksheets display in the Excel window when you create a new blank workbook? A. 3 B. 2 C. 4 D. 1 Student Answer: A Answer: Incorrect Reference: Objective 2.17. What would be a situation in… read more
AnswersByEric
AnswersByEric
Software Developer
Associate Degree
37 satisfied customers
Question 18 of 20: Select the best answer for the question.
Question 18 of 20 : Select the best answer for the question. 18. What size paper should you use for a legal document? A. 3″ × 5″ B. 8½″ × 11″ C. 7¼″ × 10½″ D. 8½″ × 14″… read more
JA Engineer
JA Engineer
Broadcast Engineer
Diploma (Honors)
163 satisfied customers
I need help with Exam Number: 00701400 Lesson Name: General
I need help with Exam Number: 00701400Lesson Name: General Math I, Study Unit 2 Pennfoster test… read more
GLENN
GLENN
Master of Mathematics
343 satisfied customers
Answer all three questions and don't exceed 600 words for
Answer all three questions and don't exceed 600 words for each answer while using at least two references to support your answers for each question adopting APA citation in the text and in the referen… read more
F. Naz
F. Naz
Chartered Accountant
CA Finalist & Completed B.com
2,161 satisfied customers
QUESTION 1 A(n) _________________ policy are codified as
QUESTION 1A(n) _________________ policy are codified as standards and procedures that are used when configuring or maintaining systems.0.10000 points Save AnswerQUESTION 2In systems analysis and desig… read more
F. Naz
F. Naz
Chartered Accountant
CA Finalist & Completed B.com
2,161 satisfied customers
I need all the questions answered inthis pdf! I need all
I need all the questions answered inthis pdf! I need all sixty questions on all 21 pages answered!… read more
Steven, M.Acc.
Steven, M.Acc.
Instructor
Master\u0027s Degree
252 satisfied customers
Exam Number: 584002RR I need all t he questions answered in
Exam Number: 584002RR I need all t he questions answered in excel in this pdf file now! Asap!… read more
The-PC-Guy
The-PC-Guy
Bachelor\u0027s Degree
629 satisfied customers
How do you differentiate between an expression and an
How do you differentiate between an expression and an equation? Provide an example of each, where the two are either related to or similar to each other. … read more
GLENN
GLENN
Master of Mathematics
343 satisfied customers
Duane will use an open system LAN because he knows the open
Duane will use an open system LAN because he knows the open system will support varieties of hardware and software components made by different vendors. Steve will use a closed system LAN because he k… read more
F. Naz
F. Naz
Chartered Accountant
CA Finalist & Completed B.com
2,161 satisfied customers
IT 278 Network Administration 1. Server roles and features
IT 278 Network Administration 1. Server roles and features can be added and updated through both a GUI installation and a Server Core installation. In a short essay, explain how to use Windows PowerSh… read more
David L.
David L.
Bachelor\u0027s Degree
6 satisfied customers
For LogicPro only. need help with this debugging to input it
For LogicPro only.need help with this debugging to input it into raptor// A high school is holding a recycling competition // This program allows a user to enter a student's // year in school (1 throu… read more
LogicPro
LogicPro
Engineer
Bachelor of Technology
5,731 satisfied customers
I need the answer key to penn american literature, 986174RR
I need the answer key to penn foster american literature, 986174RR 986175RR 986176RR 986177RR 986178RR … read more
GLENN
GLENN
Master of Mathematics
343 satisfied customers
For LogicPro only * Reading data strings from a file *
For LogicPro only* Reading data strings from a file * Convert from int based container to templates or generics based * Accommodate dynamic resizing using this algorithm: 1. Starting with a dynamic si… read more
LogicPro
LogicPro
Engineer
Bachelor of Technology
5,731 satisfied customers
Question 1 of 20: Select the best answer for the question.
Question 1 of 20 : Select the best answer for the question. 1. For what type of document would you use the landscape page orientation? A. Three-column brochure B. Business letter C. Legal contract D. … read more
Cher
Cher
JustAnswer Expert & Mentor;Teacher/Tutor
Masters Degree
1,381 satisfied customers
5 - 5 x 5 +5. What is the answer to 5 - 5 x 5 + 5? Only that
no, only that two people using order of operations keeps getting different answers… read more
GLENN
GLENN
Master of Mathematics
343 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x