subject
Physics, 13.12.2019 20:31 ptrlvn01

The golden gate bridge in san francisco has a main span of length 1.28 km, one of the longest in the world. imagine that a steel wire with this length and a cross-sectional area of 3.10 ✕ 10^−6 m^2 is laid on the bridge deck with its ends attached to the towers of the bridge, on a summer day when the temperature of the wire is 43.0°c. when winter arrives, the towers stay the same distance apart and the bridge deck keeps the same shape as its expansion joints open. when the temperature drops to −10.0°c, what is the tension in the wire? take young's modulus for steel to be 20.0 ✕ 10^10 n/m^2. (assume the coefficient of thermal expansion of steel is 11 ✕ 10−6 (°c)−1.)

ansver
Answers: 3

Another question on Physics

question
Physics, 22.06.2019 01:20
Your target variable is δf, the magnitude of the difference in frequency between the waves emitted from the sonar device and the waves received by the device after reflecting off the whale. write an expression for δf in terms of the relevant frequencies using the subscript notation introduced above.
Answers: 3
question
Physics, 22.06.2019 03:30
Starting with only the balmer series light (visible light), how could we ensure that the solar panels generate a current that mark can use for his power station? a)by gradually increasing the brightness (amount) of light that we shine on it. b)by gradually increasing the frequency of the light we shine on it. c)by gradually increasing the wavelength of the light that we shine on it.
Answers: 3
question
Physics, 22.06.2019 06:10
Which transition by an electron will release the greatest amount of energy? oa ob oc od
Answers: 2
question
Physics, 22.06.2019 16:00
In which of the following is positive work done by a person on a suitcase
Answers: 1
You know the right answer?
The golden gate bridge in san francisco has a main span of length 1.28 km, one of the longest in the...
Questions
question
Mathematics, 15.12.2020 20:30
question
Mathematics, 15.12.2020 20:30
question
English, 15.12.2020 20:30
question
Mathematics, 15.12.2020 20:30
question
History, 15.12.2020 20:30
question
Mathematics, 15.12.2020 20:30
question
Chemistry, 15.12.2020 20:30
question
Mathematics, 15.12.2020 20:30
Questions on the website: 13722367