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What are the implications of a material having a high coefficient of thermal expansion?
A material with a high coefficient of thermal expansion will expand significantly when heated and contract when cooled. This can lead to issues such as warping, cracking, or structural instability in objects made from that material when exposed to temperature changes.
What is a liquid at 20 degrees is a metal and in thermometers?
Mercury is a metal that is a liquid at 20 degrees Celsius and is commonly used in thermometers due to its unique properties, such as being non-wetting, high density, and having a high coefficient of thermal expansion which makes it a suitable choice for measuring temperature accurately.
Which material is having better sound absorption coefficient glass wool or pu foam And how it is?
pu foam
Why is silicon dioxide so important in fabrication of silicon detectors?
Silicon dioxide is used as the insulating layer in silicon detectors to prevent electrical leakage and improve signal sensitivity by reducing noise. It also provides mechanical stability and protects the underlying silicon material from damage during fabrication processes, ensuring the detector's long-term reliability and performance.
Bimetallic strips composed of two different metals each having a different rate of thermal expansion are used in?
Bimetallic strips composed of two different metals with different rates of thermal expansion are used in devices like thermostats and thermometers. When these strips are heated or cooled, they bend due to the different expansions of the metals, which can be used to control switches or indicate temperature changes.
What is borosilicate glass?
Borosilicate glass is a type of glass with silica and boron trioxide as the main glass-forming constituents. Borosilicate glasses are known for having very low coefficients of thermal expansion, making them more resistant to thermal shock than any other common glass.
Effects of having a coefficient in front of the absolute value?
A coefficient in front of the absolute value sign means to multiply that coefficient by the absolute value in the problem. For instance 3*ABS(-3) = 3*3 = 9.
What is a factor that is not the product of polynomials having integer coefficients?
(2/3)x - 6 has a rational coefficient. (sq root 2)x + 4 has an irrational coefficient.
What is Thermal expansion coefficient of plastic?
The coefficient of linear thermal expansion measures the change in length per unit length of a material per unit change in temperature. Expressed as in/in/°F or cm/cm/°C, the CLTE is used to calculate the dimensional change resulting from thermal expansion. CLTE is especially important when components of an assembly have widely varying thermal expansion coefficients. Thermal expansion of a material is another important design factor, particularly in applications where plastic parts composed of Bayblend ET1000 resin are mated with metal parts or parts having metal inserts. Coefficient of linear thermal expansion was measured on injection molded samples according to ASTM D 696. Injection molding of these samples provided better consistency on repeat testing than values from sheet-extruded samples, though the numbers were close. Molding under ISO conditions minimizes molded-in orientation and results in more accurate values. Material in/in/°F x 10-5 cm/cm/°C x 10-5 Liquid Crystal (glass reinforced) 0.3 0.6 Polycarbonate (glass reinforced) 1.2 2.2 Nylon (glass reinforced) 1.3 2.3 TP Polyester (glass reinforced) 1.4 2.5 ABS (glass reinforced) 1.7 3.1 Polypropylene (glass reinforced) 1.8 3.2 Epoxy (glass reinforced) 2.0 3.6 Polyphenylene sulfide (glass reinforced) 2.0 3.6 Acetal (glass reinforced) 2.2 4.0 Epoxy 3.0 5.4 Polycarbonate 3.6 6.5 Acrylic 3.8 6.8 ABS 4.0 7.2 Nylon 4.5 8.1 Acetal 4.8 8.5 Polypropylene 4.8 (.000048) 8.6 TP Polyester 6.9 12.4 Polyethylene 7.2 13.0 Note: Above table factors are averaged for a given plastic type; thus, the factor will vary depending upon the actual grade of given plastic type. POLYPROPYLENE EXAMPLE: Factor Distance Temp. Chng. Expansion .000048 x 24" = .001152 x 60 DegF = .0690"
What is expansion differential?
The difference in expansion of two objects having different length and heated in same temperature difference is called differential expansion.
What factories cause thermal pollution?
Those factories having boilers use coal as their fuel, cause thermal pollution.
Can a monomial have a minus sign?
Yes, a monomial can have a minus sign. A monomial is defined as a single term that can consist of a coefficient, variables, and exponents, and having a negative coefficient is allowed. For example, -3x² is a monomial because it includes a coefficient (-3) and a variable (x) raised to an exponent (2).
