A common property used to measure temperature is the ______________ of materials
Fill in the blank(s) with correct word
thermal expansion
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Which of the following colors undergoes the greatest REFRACTION when passing from air into glass?
A) yellow B) red C) blue D) orange E) green
Light passes through three ideal polarizing sheets. Unpolarized light enters the first sheet and the resultant vertically polarized beam continues through the second sheet and third sheet
The second sheet has its transmission axis at 50° with respect to the first sheet, and the third sheet is at 70° with respect to the first sheet. (a) What percent of the original intensity emerges from filter #1? (b) What percent of the original intensity emerges from filter #2? (c) What percent of the original intensity emerges from filter #3?
A copper tube with wall thickness of 8 mm must carry an axial ten-sile force of 175 kN. The allowable tensile stress is 90 MPa. The minimum required outer diameter is approximately:
(A) 60 mm
(B) 72 mm
(C) 85 mm
(D) 93 mm
What is the percentage of Earth's atmosphere (by volume) that is carbon dioxide (CO2)?
A) 78 B) 21 C) 3 D) 0.9 E) 0.03