Question

1. You are asked to find the weight of a paper clip as accurately as possible...

1. You are asked to find the weight of a paper clip as accurately as possible and given ten paper clips and a scale that has a precision of 0.1 g. (A paper clip weighs about 1 g.) Which of the following proceedures would give you the most precise measurement the weight of a paper clip?

Weigh each paper clip individually, average the values and calculate the standard error.

or

Place all ten paper clips on the scale at once, then divide the value and the precision of the scale by ten.

EXPLAIN WHY!

0 0
Add a comment Improve this question Transcribed image text
Answer #1

Place all ten paper clips on the scale at once, then divide the value and the precision of the scale by ten


this way max error in each weight of paper clip = 0.1/10 = 0.01 gm

if we measure them indivisually possible error each time = 0.1 gm

Add a comment
Know the answer?
Add Answer to:
1. You are asked to find the weight of a paper clip as accurately as possible...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • PRE-LAB Questions: 1) You use a force sensor to measure the weight of an object 10...

    PRE-LAB Questions: 1) You use a force sensor to measure the weight of an object 10 times, and get the following values: 2.8, 2.6, 2.9, 3.1, 2.4, 2.9, 3.2, 2.5, 2.7, 3.0, where all ten values are in units of N. What is the mean weight of the object, as well as the measurement uncertainty of the weight? 2) You measure the mass of the object from question 1 to be m = 300.8 g with an uncertainty of ±...

  • 1. What do volumetric glassware measure? What types of volumetric glassware will you be using in...

    1. What do volumetric glassware measure? What types of volumetric glassware will you be using in this experiment? 2. What is density? How is it calculated? 3.Define meniscus. State how you use the meniscus in making volumetric measurements. Draw a sketch of a meniscus for water in a graduated cylinder. 4. Define accuracy and precision. Explain what the “reliability of a measurement” means. (These concepts can be found in Chapter 1 of your text.) 5. Why will you calculate accurate...

  • It is possible, using basic lab equipment, to observe the force that a magnet exerts on...

    It is possible, using basic lab equipment, to observe the force that a magnet exerts on current in a wire. Equipment:DC Power Supply (3A preferred), Long Banana wire, Large Pasco C Magnet, 1 gm sensitivity food scale. (There will only be a few systems set up. Your TA's will direct you in sharing their use.) Theory: The force due to a magnetic field on a straight wire carrying a current in a uniform B field is: F = iL x...

  • Page 1 and 2 are instructions. Please help me solve K for page 3 and page...

    Page 1 and 2 are instructions. Please help me solve K for page 3 and page 4 and please check the other work on Page 3. Thanyou very much. Will Rate! CHM 112 Electrochemical Cells and Thermodynamics Section A. Constructing a Small-Scale Electrochemical Cell Woodbridge Campus Objective To construct a small-scale electrochemical cell using a redox system, to measure the cell potential and derive thermodynamic quantities. Procedures 1. Connect the red and black alligator clips to the multimeter to read...

  • 2. If two different compounds have the same Rr value, how might they be identified using paper chromatography?...

    2. If two different compounds have the same Rr value, how might they be identified using paper chromatography? 3. Why is it important to keep the spots on the paper as small as possible? 4. If the solvent pool at the bottom of the beaker touched the spots on the 1.5cm line, what would happen to the spots? How would you address this error? 5. If you were teaching a student how to do paper chromatography, what three pieces of...

  • please help with no 3,4,5 and 6 Thanks 1. What is standard error? Measure of statistical...

    please help with no 3,4,5 and 6 Thanks 1. What is standard error? Measure of statistical accuracy of an estimate, equal to the standard deviation of the theorental distribution of a large populanon of such estimates 2. What calculation is used to describe the variation in measurements. 3. In experiment 3.2. You will be measuring out 40ml of volume. How many times will you measure 40 ml? 4. What is the difference for each time you measure out 40ml? In...

  • i need help with my biology lab Length 1 km = 1,000 m 1m = .001...

    i need help with my biology lab Length 1 km = 1,000 m 1m = .001 km 1m = 100 cm 1 cm = .01 m Weight 1 kg = 1,000 1g-,001 kg 1g - 100 g 1 cg=.018 18 = 1,000 mg 1 mg = .001 g Volume 1 kL = 1,000 L 1L = .001 Ki 1L = 100 CL 1 cl = .01L 1 L = 1,000 mL 1 mL = .001 L 1 mm = .001...

  • 1. You measure 42 textbooks' weights, and find they have a mean weight of 47 ounces....

    1. You measure 42 textbooks' weights, and find they have a mean weight of 47 ounces. Assume the population standard deviation is 3.5 ounces. Based on this, construct a 90% confidence interval for the true population mean textbook weight. Give your answers as decimals, to two places 2.If n=16, ¯xx¯(x-bar)=43, and s=13, construct a confidence interval at a 99% confidence level. Assume the data came from a normally distributed population. Give your answers to one decimal place. 3.SAT scores are...

  • 4. Suppose that a student performed the experiment and calculations perfectly as directed except that, unknown...

    4. Suppose that a student performed the experiment and calculations perfectly as directed except that, unknown to the student, the balance was not zeroed but weighed 0.100 g too high throughout the experiment. Would the calculated val- ue for the density of the unknown liquid be correct? That is, would it be equal to, higher than, or lower than the true value. Explain your answer in clear and correct English. 16 LABORATORY EXPERIMENTS IN GENERAL CHEMISTRY ed in question 4...

  • Lindsay Smyth, a 15 year old young woman, was admitted by her pediatrician for evaluation. Her parents, who are divorced...

    Lindsay Smyth, a 15 year old young woman, was admitted by her pediatrician for evaluation. Her parents, who are divorced, came with her to the hospital. The client lives with her mother and has no siblings. She has no past psychiatric history or other medical problems. Her pediatrician and her parents report that the client has lost 40lbs in the past year. Despite this weight loss, she has continued to go to school and to excel academically. She also jogs...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT