If a camera lens lets in an amount of light I when it is set to f/4, then how much light will it let in when it is set to f/8?
A) I/4 B) 16I C) 2I D) 4I E) I/2
A
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Venus is very hot because its atmosphere is rich in carbon dioxide
Indicate whether the statement is true or false
The Kuiper Belt objects have orbits that:
A) carry them thousands of A.U. beyond the Sun. B) stay out just beyond Neptune and close to the ecliptic. C) stay sixty degrees ahead of or behind Jupiter. D) cross the orbit of Mars at perihelion. E) cross the orbit of Earth at perihelion.
An unknown amount of gas is placed in a container with a moveable piston as shown below. The cross-sectional area of the container is A. When a mass M is placed on the piston, the height of the piston above the bottom of the container is h
What happens when an amount of energy Q is transferred by heat to the gas? (Q>0.)
Two large parallel conducting plates are 8.0 cm apart and carry equal but opposite charges on their facing surfaces. The magnitude of the surface charge density on either of the facing surfaces is 2.0 nC/m2 . Determine the magnitude of the electric potential difference between the plates
a. 36 V b. 27 V c. 18 V d. 45 V e. 16 V