A pair of eyeglass frames are made of an epoxy plastic (coefficient of linear expansion = 1.30 ✕ 10−4°C−1). At room temperature (20.0°C), the frames have circular lens holes 2.37 cm in radius. To what temperature must the frames be heated if lenses 2.38 cm in radius are to be inserted into them?
°C
A pair of eyeglass frames are made of an epoxy plastic (coefficient of linear expansion =...
A pair of eyeglass frames are mode of epoxy plastic (coefficient of linear expansion = 1.2 x10-4 °C-1. At room temperature (21 °C) the frames have a circular lens holes 2.2 cm in radius. To what temperature must the frames be heated if lenses 2.21 cm in radius are to be inserted into them. Answer in °C
The coefficient of linear expansion for some common materials are listed in the table to the right. You would like to design an emergency overheating alarm using one of these materials. In your design, at room temperature (23.0°C), a 4.76 cm long cylinderof the material will sit with one end against a wall and the other just barely touching a button. Once the heat causes the cylinder to lengthen by 0.0233 cm, the button will be activated, turning on the...
The coefficient of linear expansion for some common materials are listed in the table to the right. You would like to design an emergency overheating alarm using one of these materials. In your design, at room temperature (23.0degreeC), a 5.51 cm long cylinder of the material will sit with one end against a wall and the other iust barely touching a button. Once the heat causes the cylinder to lengthen by 0.0268 cm, the button will be activated, turning on...
The Eiffel tower, which is made of steel (coefficient of linear expansion 13 x 10^-6/ degree C.), is 320 m high at 20(Degrees C). the change in height of the tower between the winter months when the average temperature is -20C and the summer months when the average temperature is 35C is ? a. 42 cm b. 35 cm c. 23cm d. 15 cm e. 11cm
The coefficient of linear expansion for some common materials are listed in the table. Suppose Mary would like to design an emergency overheating alarm using one of these materials. In her design, at room temperature (230°C), a 5.76 cm long cylinder of the material will sit with one end against a wall and the other just barely touching a button. Once the heat causes the cylinder to lengthen by 0.0243 cm, the button will be activated, turning on the alarm...
Q2(a) A Pyrex beaker of 400 ml (coefficient of linear expansion = 0.3x10-5 °C-+) is filled with 350 ml of glycerine (coefficient of volume expansion = 5.1x10+ °C!). Analyze if the glycerine will overflow if the temperature of both beaker and glycerine is heated from 25 °C to 100 °C. (5 marks) (b) Figure Q2(b) shows the composite wall of a freezing plant which consists of a 10 cm layer of corkboard on the inside and 14 cm layer of...
The coefficient of linear expansion for some common materials are listed in the table to the right. You would like to design an emergency overheating alarm using one of these materials. In your design, at room temperature (23.0°C), a 7.51 cm long cylinder of the material will sit with one end against a wall and the other just barely touching a button. Once the heat causes the cylinder to lengthen by 0.0258 cm, the button will be activated, turning on...
mp The coefficient of linear expansion for some common materials are listed in the table. α(U·C) 70.2 x 10-6 222 x 10 18.7 x 106 16.6 x 10-6 13.0 x 10-6 104 x 106 8.60 x 10-6 5.92 x 106 polycarbonate Suppose Mary would like to design an emergency overheating alarm usingl aluminum one of these materials. In her design, at room temperature (230°C), a 7.26 cm long cylinder of the material will sit with one end against a wall...
The coefficient of linear expansion for some common materials are listed in the table. Material polycarbonate aluminum brass Suppose Mary would like to design an emergency overheating alarm using one of these materials. In her design, at room temperature (23.0°C), a 8.26 cm long cylinder of the material will sit with one end against a wall and the other just barely touching a button. Once the heat causes the cylinder to lengthen by 0.0258 cm, the button will be activated,...
The coefficient of linear expansion for some common materials are listed Material polycarbonate aluminum brass copper in the table. Suppose Mary would like to design an emergency overheating alarm using one of these materials, In her design, at room temperature (23.0 'C), a 6.76 cm long cylinder of the material will sit with one end against a wall and the other just barc cylinder to lengthen by 0.0238 cm, the button will be activated, turning on 70.2 x 10-6 22.2...