Which of the following colors undergoes the greatest REFRACTION when passing from air into glass?
A) yellow
B) red
C) blue
D) orange
E) green
C
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Fragmenting during meteorite impacts caused the vesicular basalts found among the lunar samples
a. True b. False Indicate whether the statement is true or false
Which of the following are candidates for galactic dark matter?
A) faint red stars B) brown dwarfs C) Jupiter-size objects D) WIMPs E) all of the above
Answer the following statement(s) true (T) or false (F)
1. A person who exerts a 100-N force horizontally in the +x direction on a wall for 10 minutes does positive work on the wall. 2. When an object slides down a frictionless incline, the contact interaction between the object and incline does no work on the object. 3. The interaction does not change the object’s kinetic energy. 4. The interaction does not change the object’s momentum. 5. A heavy ball swings at the end of a chain connected to a hook in the ceiling. Suppose I pull the ball away from its equilibrium position, hold it against my nose (with the chain taut), and then release the ball from rest. The ball swings away and then back toward my face. As long as I don’t move, and the ball is left alone, I can be confident that the ball will not smash my nose.
Which quantum characteristic(s) would quantum computers exploit in order to achieve great computational power with only a few individual quantum elements or "qubits"?
A) Magnetic resonance. B) Uncertainty. C) Entanglement. D) Wave packets. E) Both uncertainty and entanglement.