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
A pair of eyeglass frames are mode of epoxy plastic (coefficient of linear expansion = 1.2...
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 10m steel rod has a coefficient of linear expansion 1.2 E -2 / Deg C and has is heated from 15 deg C to 45 degree C. Find the change in length of the rod.
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...
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. 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...
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...
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,...
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...
Two part question The coefficient of linear expansion for some common materials are listed in the table. Material 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 6.01 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 0.0238 cm, the button will be...
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...