Two students measure the length of a piece of string to be (54.32 ± 0.01 )cm...
Two students measure the length of a piece of string to be (54.32 ± 0.01
)cm and (54.23 ±
0.05)cm. Do the two measurements agree?
| Yes |
| No |
| Need more information |
Homework Answers
Answer: No
Because: the uncertainty or error in the given instrument cannot vary for a particular measuring instrument.
Add Answer to:
Two students measure the length of a piece of string to be
(54.32 ± 0.01
)cm...
Say you're measuring the length of a string L. You measure it 6 times and get...
Say you're measuring the length of a string L. You measure it 6
times and get the following measurements:12.3 cm, 11.8 cm, 12.2 cm,
10.7 cm, 12.8 cm, and 12.1 cm.
(a). What is your average measured length L_average?
(b). What is the random error on this average measured length,
L_average?
(c). Let us say that the "true" length of the string is 10.1cm.
Are the above measurements accruate? Are they precise? Explain
why.
A string with a total length of 270.8 0.05 cm has a total mass of 12.0...
A string with a total length of 270.8 0.05 cm has a total mass of 12.0 +0.1g. It is fixed at one end and stretched between that end and a pulley, two points that are 159.6 0.05 cm apart, by hanging a mass of 200.0 +0.1 g. When the string is removed from the hanging mass, that portion of the string that was between the two fixed points is 145.0 ± 0.05 cm. From the above information show the following...
8. A piece of wire of length L cm is cut into two pieces. One piece,...
8. A piece of wire of length L cm is cut into two pieces. One piece, of length x cm, is made into a circle; the rest is made into a square. Denote by A(z) the sum of the area of the circle and the area of the square. (a) (5 points) Find Im which makes A(z) MINIMUM, and find A(I'm). (b) (5 points) Find am which makes A(z) MAXIMUM, and find A(IM).
8. A piece of wire of length L cm is cut into two pieces. One piece,...
8. A piece of wire of length L cm is cut into two pieces. One piece, of length x cm, is made into a circle; the rest is made into a square. Denote by A(x) the sum of the area of the circle and the area of the square. (a) (5 points) Find I'm which makes A(z) MINIMUM, and find A(1m). (b) (5 points) Find xm which makes A(x) MAXIMUM, and find A(zm).
1. a.) A stretched string held by two students has a length of 1.5m and a...
1. a.) A stretched string held by two students has a length of 1.5m and a mass of 0.25kg. How much tension must the two kids pull on the rope to produce waves on the string that would travel 5 m/s? b.) With what frequency must one student shake the string to produce the first standing wave? 2. Design the length of a organ pipe, open at both ends that would produce note A (110Hz) as a fundamental frequency (v=343m/s)...
Problem 6.21 Students in the laboratory are determining the velocity of a travelling wave in a...
Problem 6.21 Students in the laboratory are determining the velocity of a travelling wave in a stretched string. They take readings at both the fundamental frequency and when the string is vibrating at the fifth harmonic, being careful to take several measurements of the distance between nodes in the case of the fundamental and taking each of the five individual distances between the nodes in the case of the fifth harmonic. The values obtained in each case are tabulated below....
A 13 cm piece of nylon string lies along the x x -axis, starting at x=0...
A 13 cm piece of nylon string lies along the x x -axis, starting at x=0 x = 0 cm. The first 5 cm of the string has a charge density of -9 μ μ C/cm, and the remaining length of the string has a charge density of -7 μ μ C/cm. What is the x x -component of the total electric field at the position x=18 x = 18 cm?
Please answer question #3 A string with a total length of 270.8 0.05 cm has a...
Please answer question #3
A string with a total length of 270.8 0.05 cm has a total mass of 12.0 t0.1g. It is fixed at one end and stretched between that end and a pulley, two points that are 159.6 t0.05 cm apart, by hanging a mass of 200.0 t0.1 g. When the string is removed from the hanging mass, that portion of the string that was between the two fixed points is 145.0 t0.05 cm. From the above information...
4. (5 points) Three students make measurements of the length of a 1.50 meter rod. Each student reports an uncertainty e...
4. (5 points) Three students make measurements of the length of a 1.50 meter rod. Each student reports an uncertainty estimate representing an independent random error applicable to the measurement Alice A single measurement using a 2.0 meter long tape measure, to within +2 mm. Bob: Two measurements using a wooden meter stick, each to within t2 mm, which he adds together Christina: Two measurements using a machinist's meter ruler, each to within + mm, which she adds together. The...
1-8 pts) An n-type piece of silicon with a length of 1.0 Jim and a cross-sectional...
1-8 pts) An n-type piece of silicon with a length of 1.0 Jim and a cross-sectional area of 0.05 um x 0.05 um sustains a voltage difference of 2.0 Volts between the two ends of the sample. The doping level is 107 cm Assume room temperature i.e. T = 300 K and that the electron mobility is 760 cm / V.sec a) What is the conductivity, o, of the material in ? 12. um b) What is the resistance of...
Say you're measuring the length of a string L. You measure it 6
times and get the following measurements:12.3 cm, 11.8 cm, 12.2 cm,
10.7 cm, 12.8 cm, and 12.1 cm.
(a). What is your average measured length L_average?
(b). What is the random error on this average measured length,
L_average?
(c). Let us say that the "true" length of the string is 10.1cm.
Are the above measurements accruate? Are they precise? Explain
why.
A string with a total length of 270.8 0.05 cm has a total mass of 12.0 +0.1g. It is fixed at one end and stretched between that end and a pulley, two points that are 159.6 0.05 cm apart, by hanging a mass of 200.0 +0.1 g. When the string is removed from the hanging mass, that portion of the string that was between the two fixed points is 145.0 ± 0.05 cm. From the above information show the following...
8. A piece of wire of length L cm is cut into two pieces. One piece, of length x cm, is made into a circle; the rest is made into a square. Denote by A(z) the sum of the area of the circle and the area of the square. (a) (5 points) Find Im which makes A(z) MINIMUM, and find A(I'm). (b) (5 points) Find am which makes A(z) MAXIMUM, and find A(IM).
8. A piece of wire of length L cm is cut into two pieces. One piece, of length x cm, is made into a circle; the rest is made into a square. Denote by A(x) the sum of the area of the circle and the area of the square. (a) (5 points) Find I'm which makes A(z) MINIMUM, and find A(1m). (b) (5 points) Find xm which makes A(x) MAXIMUM, and find A(zm).
Problem 6.21 Students in the laboratory are determining the velocity of a travelling wave in a stretched string. They take readings at both the fundamental frequency and when the string is vibrating at the fifth harmonic, being careful to take several measurements of the distance between nodes in the case of the fundamental and taking each of the five individual distances between the nodes in the case of the fifth harmonic. The values obtained in each case are tabulated below....
Please answer question #3
A string with a total length of 270.8 0.05 cm has a total mass of 12.0 t0.1g. It is fixed at one end and stretched between that end and a pulley, two points that are 159.6 t0.05 cm apart, by hanging a mass of 200.0 t0.1 g. When the string is removed from the hanging mass, that portion of the string that was between the two fixed points is 145.0 t0.05 cm. From the above information...
4. (5 points) Three students make measurements of the length of a 1.50 meter rod. Each student reports an uncertainty estimate representing an independent random error applicable to the measurement Alice A single measurement using a 2.0 meter long tape measure, to within +2 mm. Bob: Two measurements using a wooden meter stick, each to within t2 mm, which he adds together Christina: Two measurements using a machinist's meter ruler, each to within + mm, which she adds together. The...
1-8 pts) An n-type piece of silicon with a length of 1.0 Jim and a cross-sectional area of 0.05 um x 0.05 um sustains a voltage difference of 2.0 Volts between the two ends of the sample. The doping level is 107 cm Assume room temperature i.e. T = 300 K and that the electron mobility is 760 cm / V.sec a) What is the conductivity, o, of the material in ? 12. um b) What is the resistance of...
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