The focal lengths of the objective and the eyepiece in a microscope are 0.29 cm and 2.5 cm, respectively. An object is placed 0.3 cm from the objective. The image of this object is viewed with the eyepiece adjusted for minimum eyestrain
What is the distance between the objective and the eyepiece? A)
9.85 cm
B)
10.1 cm
C)
10.4 cm
D)
11.2 cm
E)
11.5 cm
D
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When a liquid evaporates
A) the temperature of the substance increases. B) the temperature of the substance decreases. C) heat energy leaves the substance. D) heat energy enters the substance.
A series LC circuit contains a 100-mH inductor, a 36.0-mF capacitor and a 12-V battery. The angular frequency of the electromagnetic oscillations in the circuit is
A. 36.0 × 10?4 rad/s. B. 6.00 × 10?2 rad/s. C. 2.78 rad/s. D. 16.7 rad/s. E. 277 rad/s.
Propene and cyclopropane are
a. the same compound. b. isomers. c. neither isomers nor the same compound.
Our present days of the week are related to the names of the Sun, the Moon, and ______________ planets
Fill in the blank(s) with correct word