A rectangle has a length of 1.323 m and a width of 4.16 m. Using significant figure rules, what is the area of this rectangle?
a. 5.50368 m2
b. 5.5037 m2
c. 5.504 m2
d. 5.50 m2
e. 5.5 m2
d
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While studying some sedimentary rocks in your field area, you find a mineral with rhombohedral cleavage that reacts with hydrochloric acid. You determine that this mineral is:
-muscovite. -calcite. -olivine. -quartz. -gypsum.
When a light ray traveling in air meets the surface of a piece of glass, which of the following occur at the interface?
a. The light is totally reflected. b. Some of the light is reflected back into the air. c. Some light enters the glass and is refracted toward the normal. d. Some light enters the glass and is refracted away from the normal. e. All of the light enters the glass.
For the heat exchanger tube and fin arrangement shown write the node equations for nodes 2 and 5. Write the equations for both implicit and explicit methods.
Three point charges each equal to 10 microcoulombs are located at x = 1m, x = 2m, and x = 3m, respectively, on the x-axis. What is the magnitude of the electric field at the origin?
A) 2.25 × 103 N/C B) 1.22 × 105 N/C C) 1.75 × 106 N/C D) 2.70 × 104 N/C E) 1.65 × 104 N/C