Phy 121
Your 'cq_1_01.1' 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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The problem:
Here is the definition of rate of change of one quantity with respect to another:
The average rate of change of A with respect to B on an interval is
average rate of change of A with respect to B = (change in A) / (change in B)
Apply the above definition of average rate of change of A with respect to B to each of the following. Be sure to identify the quantity A, the quantity B and the requested average rate.
If the position of a ball rolling along a track changes from 10 cm to 20 cm while the clock time changes from 4 seconds to 9 seconds, what is the average rate of change of its position with respect to clock time during this interval?
answer/question/discussion: ********** : average rate change = 20cm-10cm / 9s-4s, which is 10cm / 5s =2cm/s
If the velocity of a ball rolling along a track changes from 10 cm / second to 40 cm / second during an interval during which the clock time changes by 3 seconds, then what is the average rate of change of its velocity with respect to clock time during this interval?
answer/question/discussion: ********** : average rate of change in velocity = 40cm/s -10cm/s /3s = 30cm/s / 3s = 10cm/s^2
If the average rate at which position changes with respect to clock time is 5 cm / second, and if the clock time changes by 10 seconds, by how much does the position change?
answer/question/discussion: ********** : 5cm/s * 10s = 50cm
You will be expected hereafter to know and apply, in a variety of contexts, the definition given in this question. You need to know this definition word for word. If you try to apply the definition without using all the words it is going to cost you time and it will very likely diminish your performance. Briefly explain how you will ensure that you remember this definition.
answer/question/discussion: ********** : write it down on something, read it study it
You are asked in this exercise to apply the definition, and given a general procedure for doing so. Briefly outline the procedure for applying this definition, and briefly explain how you will remember to apply this procedure.
answer/question/discussion: ********** : first figure out the quantity of A and B if the rate of change of A with respect to B then the rate of change is delta A / delta B, figure out what is asked and use the appropriate formula to solve for the quantity asked for
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20 minutes
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i'm still not sure when to do the lab experiments, please email me this information, i don't want to get behind schedule
I've got your email and should be able to reply tonight, along with a couple of documents containing answers to a few of your other questions.