A magnifier uses a:
a. diverging lens to form a real image.
b. diverging lens to form a virtual image.
c. converging lens to form a real image.
d. converging lens to form a virtual image.
D
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If the average kinetic energy of a volume of ideal gas increases, what must be true?
A. the density decreases B. the pressure increases while the temperature stays the same C. the temperature increases while the pressure stays the same D. both the pressure and temperature increase
The annual motion of Earth around the Sun is called ________.
A. revolution B. constellation C. annualization D. rotation E. precession
An object oscillates such that its displacement is x = (0.222m) sin(314. t) where t is in seconds
(a) In one period, the object moves what distance? (b) What is the frequency? (c) What is the position at t = 1.00 s?
Resistors of 10 ohms, 20 ohms, and 30 ohms are connected in series with a battery. The 10 ohm resistor is closest to the positive terminal and the 30 ohm resistor is closest to the negative terminal. What happens as the current flows through this circuit?
A. The most current is consumed in the 10 ohm resistor, less in the 20 ohm resistor, and the least in the 30 ohm B. A little current is consumed in the 10 ohm resistor, more in the 20 ohm, and the most in the 30 ohm C. None of the resistors consume current D. The resistors each consume the same amount of current