A bimetallic strip is formed from two materials that have different __________
Fill in the blank(s) with correct word
coefficients of linear expansion
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The photoelectric effect supports a
A) wave nature of light. B) particle nature of light. C) both of these D) none of these
A 10.00-V battery is connected between two parallel metal plates 4.00 mm apart. What is the magnitude of the electric field between the plates?
a. 2.50 × 10^3 N/C b. 25.0 N/C c. 14.0 N/C d. 4.00 × 10^?6 N/C e. 2.90 × 10^3 N/C
A block and a beaker of water are placed side-by-side on a scale (case A). The block is then placed into the beaker of water, where it floats (case B). How do the two scale readings compare?
1.Scale A reads more than scale B. 2.Scale A reads the same as scale B. 3.Scale A reads less than scale B. 4.Not enough information.
A cylindrical tank is assembled by welding steel sections circumfer-entially. Tank diameter is 1.5 m, thickness is 20 mm, and internal pressure is 2.0 MPa. The maximum tensile stress perpendicular to the welds is approximately:
(A) 22 MPa
(B) 29 MPa
(C) 33 MPa
(D) 37 MPa