An object of length 5.00 cm is inside a plastic block with index of refraction 1.50 . If the object is viewed from directly above, what is the length of its image?
a. 5.00 cm
b. 7.50 cm
c. 3.33 cm
d. 4.08 cm
e. 2.22 cm
a
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Multiple-Object Accelerating Systems: A 3.0-kg and a 5.0-kg box rest side-by-side on a perfectly smooth, level floor. A horizontal force of 32 N is applied to the 3.0-kg box pushing it against the 5.0-kg box, and, as a result, both boxes slide along the floor. How hard do the two boxes push against each other?
A. 12 N B. 20 N C. 24 N D. 32 N E. 0 N
Olbers's paradox is an apparently simple question, but its resolution suggests that the universe is finite in age. What is the question?
A) Why is the sky dark at night? B) What would it be like to ride on a beam of light? C) How many stars are in the universe? D) Can we measure the position and momentum of an electron at the same time?
Consider a situation where two moving objects collide, stick to each other, and move off together.Linear momentum is definitely conserved
a. True b. False Indicate whether the statement is true or false
The direction of natural processes is from states of
A) higher order to lower order. B) lower order to higher order. C) disorganization to organization. D) imbalance to equilibrium.