When a pencil is placed in a glass of water, the pencil appears broken at the surface of the water. This is because the light;- (Finish the sentence)
A) Speeds up as it moves from water into air
B) Stops when it hits the water
C) Dies not change speed
D) Slows down as it moves from water into air
Answers: 1
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Compared with the cost of tuition, fees, and books for a traditional college course, the cost of a clep exam is:
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Arecent survey shows that the probability of a college student drinking alcohol is 0.6. further, given that the student is over 21 years old, the probability of drinking alcohol is 0.8. it is also known that 30% of the college students are over 21 years old. the probability of drinking or being over 21 years old is
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