Posted by **Anonymous** on Friday, April 6, 2012 at 9:18am.

(a) Suppose a bimetallic strip is constructed of copper and steel strips of thickness 1.1 mm and length 29 mm, and the temperature of the strip is reduced by 5.1 K. Determine the radius of curvature of the cooled strip (the radius of curvature of the interface between the two strips). (The linear expansion coefficients for copper ans steel are 1.70 10-5 °C−1 and 1.30 10-5 °C−1, respectively.)

b) If the strip is 29 mm long, how far is the maximum deviation of the strip from the straight orientation? (The deviation is measured from the straight orientation from the interface of the two strips.)

- physics -
**bobpursley**, Friday, April 6, 2012 at 10:17am
calculate the difference in change in lengths for the two metals.

arclength= angle*radius

Now you know the radii are 1.1mm apart, so radius one = R (you are solving for this), and radius two is R+1.1mm

you know the two arc lengths (original lengths plus change length)

solve for R

- physics -
**Anonymous**, Friday, April 6, 2012 at 10:22am
i can find the change in length, but I am still confused. Are you saying that I should use two equations becuase of two Rs and arclength..also what about the angle?

## Answer this Question

## Related Questions

- physics - Suppose a bimetallic strip is constructed of copper and steel strips ...
- physics - Suppose a bimetallic strip is constructed of copper and steel strips ...
- physics - a) Suppose a bimetallic strip is constructed of copper and steel ...
- physics - (a) Suppose a bimetallic strip is constructed of copper and steel ...
- Physics - Consider a bimetallic strip consisting of a 0.6-mm-thick brass upper ...
- Physics/Chemistry - Two thin strips of metal are bolted together at one end and ...
- Physics - As the drawing shows, two thin strips of metal are bolted together at ...
- Physics - Two thin strips of metal are bolted together at one end and have the ...
- Physics - I'm also stumped by this one: 3. A bimetallic strip (117 cm by 1 cm by...
- math - a metre length of cable is cut into 3 strips and the first strip is 3.42 ...