A compound microscope has an eyepiece that
a. uses a real image from the objective as the object and forms its own real image.
b. uses a real image from the objective as the object and forms a virtual image.
c. uses a virtual image from the objective as the object and forms its own real image.
d. uses a virtual image from the objective as the object and forms its own virtual image.
b
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Graphical Analysis: The figure shows the velocity-versus-time graph for a basketball player traveling up and down the court in a straight-line path. Find the displacement of the player(a) during the first two seconds.(b) between t = 4 s and t = 8 s.
Fill in the blank(s) with the appropriate word(s).
A planet is most likely to have volcanic and tectonic activity if it has
A) low surface gravity. B) high surface gravity. C) low internal temperature. D) high internal temperature. E) a dense atmosphere.
One mole of the carbon-12 isotope contains 6.022 × 10^23 atoms. What volume in m3 would be needed to store one mole of cube-shaped children's blocks 2.00 cm long on each side?
a. 4.8 × 10^18 b. 1.2 × 10^22 c. 6.0 × 10^23 d. 1.2 × 10^24 e. 4.8 × 10^24
Two metal rods, one silver and the other gold, are attached to each other end-to-end. The free end of the silver rod is immersed in a steam chamber at 100°C,
and the free end of the gold rod in an ice water bath at 0°C. The rods are both 5.0 cm long and have a square cross-section that is 2.0 cm on a side. No heat is exchanged between the rods and their surroundings, except at the ends. How much total heat flows through the two rods each minute? The thermal conductivity of silver is 417 W/m ? K, and that of gold is 291 W/m ? K. A) 8.2 kJ B) 9.5 kJ C) 12 kJ D) 14 kJ E) 16 kJ