subject
Physics, 08.07.2019 20:20 dpickard9848

When the temperature drops to -14.2 °c, the ruler shrinks and no longer measures distances accurately. however, the ruler can be made to read correctly if a force of magnitude 1.95 x 103 n is applied to each end so as to stretch it back to its original length. the ruler has a cross-sectional area of 1.38 x 10-5 m2, and it is made from a material whose coefficient of linear expansion is 2.5 x 10-5 (c°)-1. what is young's modulus for the material from which the ruler is made?

ansver
Answers: 1

Another question on Physics

question
Physics, 21.06.2019 19:00
When the velocity of an object is doubled, by what factor is its momentum changed? by what factor is its kinetic energy changed? a) the momentum is zero. b) the momentum is not zero. c) difficult to say.
Answers: 3
question
Physics, 22.06.2019 03:50
The force acting on a beam was measured under the same operating conditions and a sample of 5 data points was collected. this process was repeated by 3 observers. the pooled standard deviations of these 3 data sets was 1.21. determine the true mean force using all pooled data (with a 95% probability). the result should look like this: true mean = mean +/- margin of error
Answers: 1
question
Physics, 22.06.2019 23:50
Which property is expressed in distance units? o a. period o b. wavelength o c. speed o d. frequency
Answers: 2
question
Physics, 23.06.2019 00:00
Examine the drawing of a molecule. each ring represents an atom of nitrogen (n). what’s the chemical formula of this substance?
Answers: 2
You know the right answer?
When the temperature drops to -14.2 °c, the ruler shrinks and no longer measures distances accuratel...
Questions
question
Mathematics, 30.04.2021 16:40
question
Mathematics, 30.04.2021 16:40
Questions on the website: 13722360