Phy201
Your 'cq_1_15.1' report has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.
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A rubber band begins exerting a tension force when its length is 8 cm. As it is stretched to a length of 10 cm its tension increases with length, more or less steadily, until at the 10 cm length the tension is 3 Newtons.
Between the 8 cm and 10 cm length, what are the minimum and maximum tensions?
Min 0Newtons max 3Newtons
Assuming that the tension in the rubber band is 100% conservative (which is not actually the case) what is its elastic potential energy at the 10 cm length?
30J
If all this potential energy is transferred to the kinetic energy of an initially stationary 20 gram domino, what will be the velocity of the domino?
.2m/s
If instead the rubber band is used to 'shoot' the domino straight upward, then how high will it rise?
3cm
Not all your answers are correct. For example the energies involved in this situation are nowhere near 30 J. Details of your units calculation would probably revealed why some of your results deviate so greatly from the correct results.
You haven't provided any detail in your solutions. Please see my notes on many previous assignments regarding the need to provide details.
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25min
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&#Please see my notes and submit a copy of this document with revisions and/or questions, and mark your insertions with &&&& (please mark each insertion at the beginning and at the end). &#
A rubber band has no tension until it reaches a length of 7.5 cm. Beyond that length its tension increases by .7 Newtons for every additional centimeter of length. What will be its tension if its endpoints are at the points (5 cm, 9 cm) and (10 cm, 17 cm) as measured on an x-y coordinate system?
(0,1.05), (1.75,6.65)
What is the vector from the first point to the second?
1.75
What is the magnitude of this vector?
5.6
What vector do you get when you divide this vector by its magnitude? (Specify the x and y components of the resulting vector).
2nd in first set
What vector do you get when you multiply this new vector by the tension?
2nd in 2nd set
What are the x and y coordinates of the new vector?
(Y1 , Y2)
Not all your answers are correct. For example 1.75 is not a vector. I
You haven't provided any detail in your solutions. Please see my notes on many previous assignments regarding the need to provide details.
&#Please see my notes and submit a copy of this document with revisions and/or questions, and mark your insertions with &&&& (please mark each insertion at the beginning and at the end). &#
Finally note that you apparently typed in your e-mail address, and typed it incorrectly. Only by chance did I happen to notice your work among misrouted communications; had I not noticed it is document would not have been posted. You must do whatever is necessary to ensure that your identifying information is correct.