Hello. The title of the lab is Length of a Metal Rod. I have a lab report, but I

Question

Hello.

The title of the lab is Length of a Metal Rod.

I have a lab report, but I do not know how to calculate thefollowing things:

1) Record the length of the rod in centimeters and in inches in theform:
           Lcm =L ave cm ± cm
           L in =L ave in ± in
My data is this:
L ave cm = 22.77 cm ; cm = 0.04 cm
L ave in = 8,98 in ; in = 0.02 in

How to deal with this ± sign? I think there is onlyone answer in each unit. Do I just add them together orsubtract?

2) Report your experimental value for the number of centimeters perinch in the form:
R = R ave ± R

My data is:
R ave = 2.54 cm/in ; R = 0.01 cm/in
What should I do with this ± sign?

3) Take the percent error of your average value for R with thedefined value of 2.54 cm/in.

I have no idea what the problem means, but I know the formula ofthe percent error, which is

% Error =( |Result - Accepted| / Accepted ) * 100

I do not know which one is result and which one is accepted.

Please please help me!!
I will give you lifesaver!!

Explanation / Answer

Given :      Here the ±sign using to getthe theorticl value from the lab value, if the lab value is lessthen theorticl value we will use + sign ( addition ). If  the lab valueis larger then the theorticl value we will use -sigen (subtract ). I hope it helps you

Related Questions

Navigate

• Browse (All)
• Browse H
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.