Search results
Results from the WOW.Com Content Network
Polycarbonate has a glass transition temperature of about 147 °C (297 °F), [8] so it softens gradually above this point and flows above about 155 °C (311 °F). [9] Tools must be held at high temperatures, generally above 80 °C (176 °F) to make strain-free and stress-free products.
The specific heat of the human body calculated from the measured values of individual tissues is 2.98 kJ · kg−1 · °C−1. This is 17% lower than the earlier wider used one based on non measured values of 3.47 kJ · kg−1· °C−1.
Refractive index n D [8] at 20 °C 1.518 1.473 1.531 1.650 1.459 1.608 1.7 Dispersion at 20 °C, 10 4 ×(n F - n C) [8] 86.7 72.3 89.5 169 67.8 145 Young's modulus at 20 °C, GPa 72 65 75 67 72 43.3 [9] Shear modulus at 20 °C, GPa 29.8 28.2 26.8 31.3 Liquidus temperature, °C 1040 1070 [10] 1715 1115 Heat capacity at 20 °C, J/(mol·K) 49 50 ...
— "Values ranging from 21.3 to 21.5 gm/cm 3 at 20 °C have been reported for the density of annealed platinum; ... room temperature KCH: 5.897 kg/m 3: 0 °C, 101.3 ...
ρ is density (kg/m 3) Together, ρc p can be considered the volumetric heat capacity (J/(m 3 ·K)). As seen in the heat equation , [ 5 ] ∂ T ∂ t = α ∇ 2 T , {\displaystyle {\frac {\partial T}{\partial t}}=\alpha \nabla ^{2}T,} one way to view thermal diffusivity is as the ratio of the time derivative of temperature to its curvature ...
November 8, 2024 at 3:32 AM. Credit - Getty Images. ... you may not have to visit a crowded doctor’s office or emergency room where you could spread the infection, and could have a prescription ...
Small granite pillars have failed under loads that averaged out to about 1.43 ⋅ 10 8 Newtons/meter 2 and this kind of rock has a sonic speed of about 5.6 ± 0.3 ⋅ 10 3 m/sec (stp), a density of about 2.7 g/cm 3 and specific heat ranging from about 0.2 to 0.3 cal/g °C through the temperature interval 100-1000 °C [Stowe pages 41 & 59 and ...
This past summer, Sacramento had its hottest 20-day stretch on record, averaging 103.8 degrees during those three weeks from June 23 to July 12. On July 5, the temperature reached 110. The next ...