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Mastering Physics Solutions Chapter 1 Introduction To Physics

May 15, 2018 by Prasanna

​ Mastering Physics Solutions

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From the figure plot A starts at 40, plot E starts at 60 and plot D starts at 30 so the chirping rate is not coincide with zero because at 40 degree Fahrenheit the line should be start at zero chirping rate. Plot C and plot B starts from zero, so they follow chipping rate. From the above calculation chipping rate is linearly proportional to the temperature. Plot B is not a linear plot, so the plot represents chirping rate of snowy tree cricket.

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Mastering physics answers wrong

• Thread starter jcksn34
• Start date Nov 3, 2007
• Tags Mastering physics Physics
• Nov 3, 2007
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A PF Molecule

jcksn34 said: just wanted to know if anyone else is using the program mastering physics for homework and getting wrong answers to the questions. This has happened to me a few times and I am sure their answers are completely wrong. For example a simple work problem with a force pushing a block up a ramp. when asked for the work in joules of friction force you find first the normal force multiply that by the coefficient of friction then substitute in the formula W=F times displacement times cos theta correct? And normal force is perpendicular to the plane of the incline. For example the explanation of their answer normal force of a 1 kg box being pushed up an incline was equal to 9.8N? which is not right if normal force is perpendicular the plane of the incline. am i crazy or is this program giving wrong answers?

A PF Organism

A block of mass 1.00kg sits on an inclined plane as shown. A force of magnitude 100N is pulling the block up the incline at constant speed. The coefficient of kinetic friction between the plane and the block is 0.500. The inclined plane makes an angle 30.0 degrees with the horizontal. What is the total work done on the block by the force of friction as the block moves a distance 8.00 up the incline? mastering physics answer = -39.2 joules Mastering physics explanation= Hint 1. Find the magnitude of the normal force What is the magnitude of the normal force? Hint 1. How to find the normal force Consider all the forces that have a non-zero component along the direction perpendicular to the slope. There are only two such forces: the weight of the block and force . What is the magnittude of the component of the weight perpendicular to the slope? Draw the axes and label the angles clearly to find out. Their normal force answer =9.80N Their friction force answer =4.90  

The normal force in this case should be: [tex]F_N = mg \cos(30^o)=9.8(.866)=8.48N[/tex] Yeah, I think Mastering Physics screwed up here.  

thank you, that's what i got too, now i know to double check their answers if I am unsure instead of wasting a half hour trying to figure out how to get a wrong answer lol!  

Related to Mastering physics answers wrong

1. why do i keep getting the wrong answers in mastering physics.

There could be multiple reasons for this. It could be due to a miscalculation or error in your input values, a misunderstanding of the concepts or equations, or a glitch in the system. Make sure to double check your calculations and understanding of the problem before submitting your answer, and if you are confident in your work, reach out to your instructor for further clarification.

2. Can I get credit for partially correct answers in mastering physics?

It depends on your instructor's grading policy. Some may give partial credit for showing work or using the correct approach, while others may only give full credit for completely correct answers. It's best to check with your instructor for their specific guidelines.

3. What should I do if I believe there is an error in the mastering physics system?

If you believe there is an error in the system, you can reach out to the customer support team for Mastering Physics. They will investigate the issue and make any necessary corrections. In the meantime, you can also reach out to your instructor for assistance.

4. How can I improve my scores in mastering physics?

First, make sure you have a strong understanding of the concepts and equations being tested. Review any material that you are struggling with and practice solving problems. It may also be helpful to work with a study group or seek additional help from your instructor or a tutor. Additionally, pay attention to any feedback provided by the system on incorrect answers and use it to improve your understanding.

5. Is there a limit to the number of attempts I can make for a mastering physics problem?

Yes, there is usually a limit set by your instructor for the number of attempts allowed for each problem. This is to encourage you to review and improve your understanding of the material rather than repeatedly guessing until you get the correct answer. If you have reached the limit and are still struggling with the problem, reach out to your instructor for assistance.

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Physics 181/182 Homework Solutions