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2. A student makes the following measurements in the lab: (4 pts) x = 2.51 ±...
A student makes the following measurements: a = 5 ± 1 cm, b = 18 ±...
A student makes the following measurements: a = 5 ± 1 cm, b = 18 ± 2 cm, c = 12 ± 1 cm, t = 3.0 ± 0.5 s, m = 18 ± 1 gram Compute the following quantities with their maximum (upper-bound) uncertainties and maximum percentage uncertainties: (a) a + b + c, (b) 2a + b – c, (c) act, and (d) z=4a, (e)z=b/2,(f)z=a^2
In an experiment on the conservation of angular momentum, a student needs to find the angular...
In an experiment on the conservation of angular momentum, a student needs to find the angular momentum L of a uniform disk of mass M and radius R as it rotates with angular velocity . She makes the following measurements: ? = 1.10 ± 0.01 ?? ? = 0.250 ± 0.005 ? ? = 21.5 ± 0.4 ???/? and calculates L using ? = 1 2 ?? 2? (you will learn where this formula comes from later in PHYS 206.)...
Question 4 2.5 pts In lab a student calculates the following equilibrium concentrations for Femto) +...
Question 4 2.5 pts In lab a student calculates the following equilibrium concentrations for Femto) + SCNag) = FeSCNG at each of the specified temperatures. Calculate AH° in units of both Report your answer to two places after the decimal. mol Data Table Temp (°C) K. 224.4 17.5 56.1 76.5 198.6 147 122.3 Question 5 1.5 pts Based on the data and answer from the previous question, the reaction would be [Select] - because the [Select] A is [ Select...
Question 4 2.5 pts In lab a student calculates the following equilibrium concentrations for Fe) +SCN )= FeSCN ) at each...
Question 4 2.5 pts In lab a student calculates the following equilibrium concentrations for Fe) +SCN )= FeSCN ) at each of the specified temperatures. Calculate AHⓇ in units of K. Report your answer to two places after the decimal. Data Table Temp (°C) K 1.2 223.1 22.8 193.4 64.6 81.1 142.5 122.2
Phys2425 PRE-LAB FORM MEASUREMENTS 1. Write the answers for the following in a. The earth's circumference,...
Phys2425 PRE-LAB FORM MEASUREMENTS 1. Write the answers for the following in a. The earth's circumference, measured through the poles, is exactly 40,000 020 m (according to an early standard of the meter). What is the Tadius of the earth, R? b. The surface area of the earth is given by A Tm 4x xR. What is the arca A? c. Using the units conversion I inch-2.54 cm, convert the volume V -302 in' into a volume in cubic cm...
4. (30). For the vibrational beam lab, a linear regression gives y = (3.6 x 10"*...
4. (30). For the vibrational beam lab, a linear regression gives y = (3.6 x 10"* + 3 x 10-5)x+ (6 x 10-6 + 4 x 10-), where x is mass in kg and y is 1/2. in (s/rad) Given that the length of the beam is L = 24 + 1 cm, the width is b = 2.10+ 0.01 cm, and the thickness is h = 0.5 + 0.01 cm. Please note that indicates uncertainty of the relevant quantities....
1. A student makes several measurements of the density of an unknown mineral sample. She then...
1. A student makes several measurements of the density of an unknown mineral sample. She then reports the average value of these measurements. The number of significant figures she uses in her result should be a measure of its A) accuracy. B precision C) systematic error. D) determinate error. E) human error. The temperature of a gas sample isproperty. 2. A) intensive B) extensive 3. Which one of the following is a "substance" in the chemical sense as used in...
i need help with 2,4,5,8,9,10-12 6 pts Question 2 A student designs an experiment to test...
i need help with 2,4,5,8,9,10-12
6 pts Question 2 A student designs an experiment to test the hypothesis: "If a solution of sucrose in water has a higher concentration, it will attract more ants." The student makes sucrose solutions with concentrations of 1.00,5.00, 10.50, 20.00 and 25.00% sucrose by mass, then leaves the solutions outside. After some time has passed, the student counts the number of ants that are in each beaker. The independent variable for this experiment is the:...
Hi, I need help solving number 13. Please show all the steps, thank you. :) Consider the solid Q bounded by z-2-y2;z-tx at each point Р (x, y, z) is given by mass of Q [15 pts] 9. x-4. The density Z/...
Hi, I need help solving number 13. Please show all the steps,
thank you. :)
Consider the solid Q bounded by z-2-y2;z-tx at each point Р (x, y, z) is given by mass of Q [15 pts] 9. x-4. The density Z/m 3 . Find the center of (x, y, z) [15 pts] 10. Evaluate the following integral: ee' dy dzdx [15 pts] 11. Use spherical coordinates to find the mass m of a solid Q that lies between the...
Question 4 2.5 pts Following the procedure in lab, a student heated their 14.57 g metal...
Question 4 2.5 pts Following the procedure in lab, a student heated their 14.57 g metal sample to 100.0°C. The metal was added to a coffee cup calorimeter containing 54.849 g of water at 29.5°C. The final temperature of the water was 37.5° C. Assuming no heat was absorbed by the calorimeter, calculate the specific heat of the metal. Report your answer in units of a
Question 4 2.5 pts In lab a student calculates the following equilibrium concentrations for Femto) + SCNag) = FeSCNG at each of the specified temperatures. Calculate AH° in units of both Report your answer to two places after the decimal. mol Data Table Temp (°C) K. 224.4 17.5 56.1 76.5 198.6 147 122.3 Question 5 1.5 pts Based on the data and answer from the previous question, the reaction would be [Select] - because the [Select] A is [ Select...
Question 4 2.5 pts In lab a student calculates the following equilibrium concentrations for Fe) +SCN )= FeSCN ) at each of the specified temperatures. Calculate AHⓇ in units of K. Report your answer to two places after the decimal. Data Table Temp (°C) K 1.2 223.1 22.8 193.4 64.6 81.1 142.5 122.2
Phys2425 PRE-LAB FORM MEASUREMENTS 1. Write the answers for the following in a. The earth's circumference, measured through the poles, is exactly 40,000 020 m (according to an early standard of the meter). What is the Tadius of the earth, R? b. The surface area of the earth is given by A Tm 4x xR. What is the arca A? c. Using the units conversion I inch-2.54 cm, convert the volume V -302 in' into a volume in cubic cm...
4. (30). For the vibrational beam lab, a linear regression gives y = (3.6 x 10"* + 3 x 10-5)x+ (6 x 10-6 + 4 x 10-), where x is mass in kg and y is 1/2. in (s/rad) Given that the length of the beam is L = 24 + 1 cm, the width is b = 2.10+ 0.01 cm, and the thickness is h = 0.5 + 0.01 cm. Please note that indicates uncertainty of the relevant quantities....
1. A student makes several measurements of the density of an unknown mineral sample. She then reports the average value of these measurements. The number of significant figures she uses in her result should be a measure of its A) accuracy. B precision C) systematic error. D) determinate error. E) human error. The temperature of a gas sample isproperty. 2. A) intensive B) extensive 3. Which one of the following is a "substance" in the chemical sense as used in...
i need help with 2,4,5,8,9,10-12
6 pts Question 2 A student designs an experiment to test the hypothesis: "If a solution of sucrose in water has a higher concentration, it will attract more ants." The student makes sucrose solutions with concentrations of 1.00,5.00, 10.50, 20.00 and 25.00% sucrose by mass, then leaves the solutions outside. After some time has passed, the student counts the number of ants that are in each beaker. The independent variable for this experiment is the:...
Hi, I need help solving number 13. Please show all the steps,
thank you. :)
Consider the solid Q bounded by z-2-y2;z-tx at each point Р (x, y, z) is given by mass of Q [15 pts] 9. x-4. The density Z/m 3 . Find the center of (x, y, z) [15 pts] 10. Evaluate the following integral: ee' dy dzdx [15 pts] 11. Use spherical coordinates to find the mass m of a solid Q that lies between the...
Question 4 2.5 pts Following the procedure in lab, a student heated their 14.57 g metal sample to 100.0°C. The metal was added to a coffee cup calorimeter containing 54.849 g of water at 29.5°C. The final temperature of the water was 37.5° C. Assuming no heat was absorbed by the calorimeter, calculate the specific heat of the metal. Report your answer in units of a
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